Pittsburgh Steelers quarterback Joshua Dobbs warms up before an NFL preseason football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Carolina Panthers tight end Cam Serigne warms up before an NFL preseason football game against the Pittsburgh Steelers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Carolina Panthers quarterback Cam Newton (1) takes a selfie with a family of fans on the field during warmups before an NFL preseason football game against the Pittsburgh Steelers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Joshua Dobbs looks to pass during the first half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers coach Mike Tomlin, left, talks with quarterback Ben Roethlisberger on the sideline during the first half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers wide receiver Tevin Jones , right, celebrates his touchdown catch with offensive tackle Chuks Okorafor (76) during the first half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Joshua Dobbs (5) gets off a touchdown pass to wide receiver Tevin Jones under pressure from Carolina Panthers defensive back Colin Jones (42) during the first half of a preseason NFL football game in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Joshua Dobbs runs with the ball during the first half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Carolina Panthers wide receiver Mose Frazier (14) celebrates his touchdown catch with tight end Evan Baylis (85) during the first half of a preseason NFL football game against the Pittsburgh Steelers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Mason Rudolph, top, leaps over the back of wide receiver Tevin Jones, bottom, after the two connected for a touchdown during the first half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Carolina Panthers tight end Cam Serigne (86) is upended by Pittsburgh Steelers linebacker Ola Adeniyi (92) during the first half of a preseason NFL football game in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Quadree Henderson hauls in a pass from quarterback Mason Rudolph for a touchdown during the second half of a preseason NFL football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers linebacker Matthew Thomas (46) recovers a fumble by Carolina Panthers quarterback Kyle Allen (7) which he forced during the second half of a preseason NFL football game in Pittsburgh, Thursday, Aug. 30, 2018. (AP Photo/Keith Srakocic)

Pittsburgh Steelers coach Mike Tomlin, right, and Carolina Panthers coach Ron Rivera shake hands after a preseason NFL football game in Pittsburgh, Thursday, Aug. 30, 2018. The Steelers won 34-29. (AP Photo/Don Wright)

Pittsburgh Steelers coach Mike Tomlin takes questions at a news conference after the team's NFL preseason football game against the Carolina Panthers, Thursday, Aug. 30, 2018, in Pittsburgh. The Steelers won 39-24. (AP Photo/Keith Srakocic)