Baltimore Ravens tight end Visanthe Shiancoe leaps over Carolina Panthers cornerback Josh Thomas during the second half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Carolina Panthers cornerback Drayton Florence carries the ball into the end zone for a touchdown after incepting a pass by Baltimore Ravens quarterback Joe Flacco during the first half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Patrick Semansky)

Baltimore Ravens running back Ray Rice, right, runs past Carolina Panthers strong safety Mike Mitchell during the first half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens running back Anthony Allen is stopped by Carolina Panthers cornerback Josh Thomas during the second half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens outside linebacker Terrell Suggs reacts to his introduction before the first half of a preseason NFL football game against the Carolina Panthers in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens running back Ray Rice celebrates his touchdown with guard Marshal Yanda during the first half of a preseason NFL football game against the Carolina Panthers in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Carolina Panthers quarterback Cam Newton looks for an open receiver during the first half of a preseason NFL football game against the Baltimore Ravens in Baltimore, Thursday Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Jacoby Jones, left, is stopped by Carolina Panthers inside linebacker A.J. Klein during the first half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Gail Burton)

Carolina Panthers quarterback Cam Newton puts a hand to the back of a blocker during the first half of a preseason NFL football game against the Baltimore Ravens in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco prepares to throw a pass during the first half of a preseason NFL football game against the Carolina Panthers in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Patrick Semansky)

Carolina Panthers quarterback Cam Newton is sacked by Baltimore Ravens outside linebacker Daryl Smith during the first half of a preseason NFL football game in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Joe Flacco passes the ball during the first half of a preseason NFL football game against the Carolina Panthers in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco towels off on the sideline after leaving the NFL preseason football against the Carolina Panthers in the second quarter in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Patrick Semansky)

Carolina Panthers middle linebacker Luke Kuechly celebrates his interception during the first half of a preseason NFL football game against the Baltimore Ravens in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Marlon Brown carries the ball into the end zone for a touchdown during the second half of a preseason NFL football game against the Carolina Panthers in Baltimore, Thursday, Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Joe Flacco warms up before a preseason NFL football game between the Carolina Panthers in Baltimore, Thursday Aug. 22, 2013. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Joe Flacco, left, and Carolina Panthers quarterback Cam Newton talk as they walk across the field before a preseason NFL football game in Baltimore, Thursday Aug. 22, 2013. (AP Photo/Nick Wass)

Carolina Panthers quarterback Cam Newton warms up before a preseason NFL football game between the Baltimore Ravens in Baltimore, Thursday Aug. 22, 2013. (AP Photo/Gail Burton)