Baltimore Ravens running back Terrance West (28) carries the ball past Buffalo Bills defensive end Jerry Hughes (55) and defensive tackle Corbin Bryant (97) during the first half of an NFL football game in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Patrick Semansky)

Baltimore Ravens running back Terrance West (28) breaks a tackle by Buffalo Bills cornerback Ronald Darby (28) as he runs past Buffalo Bills middle linebacker Preston Brown (52) during the first half of an NFL football game in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Patrick Semansky)

Buffalo Bills running back LeSean McCoy (25) is stopped by Baltimore Ravens cornerback Kyle Arrington (24) during the first half of an NFL football game in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Mike Wallace looks back at Buffalo Bills strong safety Duke Williams (27) as he runs for a touchdown during the first half of an NFL football game in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Patrick Semansky)

Baltimore Ravens kicker Justin Tucker (9) celebrates his field goal as he walks off the field with teammate Sam Koch (4) during the first half of an NFL football game against the Buffalo Bills in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Patrick Semansky)

Baltimore Ravens running back Terrance West (28) is stopped by Buffalo Bills linebacker Lerentee McCray (56) during the first half of an NFL football game in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Gail Burton)

Buffalo Bills running back LeSean McCoy (25) punches though the line for a touchdown during the first half of an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Sept. 11, 2016. (AP Photo/Gail Burton)