PHOTOS: What's in a number? No. 91
See who has worn jersey No. 91 in Steelers history

Gregg Carr (1985-1988)

Gregg Carr (1985-1988)

Gregg Carr (1985-1988)

Craig Veasey (1991)

Craig Veasey (1991)

Craig Veasey (1991)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Kevin Greene (1993-1995)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Aaron Smith (1999-2011)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)

Stephon Tuitt (2014-present)