Houston Texans defensive end J.J. Watt (99) rushes the passer during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Houston Texans head coach Bill O'Brien coaches during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. (Aaron M. Sprecher/NFL)

Houston Texans quarterback Case Keenum (7) celebrates after leading his team to a touchdown during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. (Aaron M. Sprecher/NFL)

Baltimore Ravens head coach John Harbaugh coaches during an NFL football game against the Houston Texans at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Baltimore Ravens quarterback Joe Flacco (5) throws the ball downfield during an NFL football game against the Houston Texans at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Houston Texans defensive end J.J. Watt (99) rushes the passer during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Houston Texans defensive end J.J. Watt (99) rushes the passer during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Houston Texans defensive end J.J. Watt (99) celebrates after recording a sack during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. Houston won 25-13. (Aaron M. Sprecher/NFL)

Baltimore Ravens quarterback Joe Flacco (5) hands the ball to running back Justin Forsett (29) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

As Houston Texans punter Shane Lechler (9) holds, kicker Randy Bullock (4) hits a field goal against the Baltimore Ravens NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans defensive end J.J. Watt (99) cheers in the huddle before an NFL football game against the Baltimore Ravens Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

After intercepting the ball from Houston Texans quarterback Case Keenum (7), Baltimore Ravens free safety Darian Stewart (24) celebrates with inside linebacker Daryl Smith (51), and defensive back Rashaan Melvin (38) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

After intercepting the ball from Houston Texans quarterback Case Keenum (7), Baltimore Ravens free safety Darian Stewart (24) celebrates with strong safety Matt Elam (26), and defensive back Rashaan Melvin (38) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

After intercepting the ball from Houston Texans quarterback Case Keenum (7), Baltimore Ravens free safety Darian Stewart (24) celebrates with outside linebacker Elvis Dumervil (58) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans wide receiver Andre Johnson (80) is tackled by Baltimore Ravens outside linebacker Terrell Suggs (55) after Johnson made his career 1000th reception during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans quarterback Case Keenum (7) rolls out to pass against the Baltimore Ravens during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Baltimore Ravens quarterback Joe Flacco (5) looks to pass as tackle Ricky Wagner (71) holds off Houston Texans defensive end J.J. Watt (99) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Baltimore Ravens quarterback Joe Flacco (5) runs the ball as Houston Texans outside linebacker Whitney Mercilus (59) reaches in to cause a fumble out of bounds during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt (99) reacts against the Baltimore Ravens during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans tight end C.J. Fiedorowicz (87) makes a touchdown reception against the Baltimore Ravens during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

After throwing a touchdown reception to C.J. Fiedorowicz, Houston Texans running back Arian Foster (23) celebrates against the Baltimore Ravens during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans tight end C.J. Fiedorowicz (87) makes a touchdown reception as Baltimore Ravens inside linebacker C.J. Mosley (57) defends during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans quarterback Case Keenum (7) celebrates after leading his team to a touchdown during an NFL football game against the Baltimore Ravens at NRG Stadium on Sunday December 21, 2014 in Houston, Texas. (Aaron M. Sprecher/NFL)

Houston Texans quarterback Case Keenum (7) runs the ball as Baltimore Ravens outside linebacker Terrell Suggs (55) defends during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans running back Arian Foster (23) is tackled by Baltimore Ravens strong safety Matt Elam (26) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Baltimore Ravens quarterback Joe Flacco (5) passes the ball as Baltimore Ravens outside linebacker Albert McClellan (50) moves in during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Baltimore Ravens wide receiver Steve Smith (89) makes a reception as Houston Texans cornerback Johnathan Joseph (24) defends during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Baltimore Ravens wide receiver Steve Smith (89) makes a touchdown reception against the Houston Texans during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans cornerback Kareem Jackson (25) runs back an interception as Baltimore Ravens tight end Owen Daniels (81) and wide receiver Torrey Smith (82) defend during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

As Houston Texans outside linebacker Whitney Mercilus (59) looks on, cornerback Kareem Jackson (25) throws the ball into the stands after making an interception against the Baltimore Ravens during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans wide receiver DeAndre Hopkins (10) fumbles the ball out of bounds after making a reception against Baltimore Ravens defensive back Rashaan Melvin (38) during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Baltimore Ravens wide receiver Torrey Smith (82) scores a touchdown as Houston Texans strong safety D.J. Swearinger (36), inside linebacker Brian Cushing (56), and strong safety Danieal Manning (38) follow during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Baltimore Ravens wide receiver Torrey Smith (82) scores a touchdown as Houston Texans strong safety Danieal Manning (38) follows during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt (99) celebrates after sacking Baltimore Ravens quarterback Joe Flacco (5) during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans defensive end J.J. Watt (99) celebrates after sacking Baltimore Ravens quarterback Joe Flacco during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans defensive end J.J. Watt (99) sacks Baltimore Ravens quarterback Joe Flacco (5) during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt (99) celebrates after sacking Baltimore Ravens quarterback Joe Flacco during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/Patric Schneider)

Houston Texans cornerback Kareem Jackson (25) runs back an interception against the Baltimore Ravens during the second half of an NFL football game Sunday, Dec. 21, 2014, in Houston. Ravens wide receiver Torrey Smith (82) and outside linebacker Whitney Mercilus (59) follow. (AP Photo/David J. Phillip)

Baltimore Ravens head coach John Harbaugh, left, and Houston Texans head coach Bill O'Brien greet on the field after an NFL football game Sunday, Dec. 21, 2014, in Houston. The Texans won 25-13. (AP Photo/Patric Schneider)

Houston Texans defensive end J.J. Watt (99) leaves the field after an NFL football game against the Baltimore Ravens Sunday, Dec. 21, 2014, in Houston. The Texans won 25-13. (AP Photo/Patric Schneider)

Baltimore Ravens quarterback Joe Flacco (5) gathers himself after being sacked by Houston Texans defensive end J.J. Watt (99) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)

Baltimore Ravens outside linebacker Terrell Suggs (55) tries to tackle Houston Texans running back Arian Foster (23) during the first half of an NFL football game Sunday, Dec. 21, 2014, in Houston. (AP Photo/David J. Phillip)