No one. That number was worn by pitcher Livan Hernandez but no one has worn it since he was traded to the Diamondbacks in 2006.
Ian Desmond.
In 2007, wide receiver Nate Washington wore #85 for the Steelers.
In the 2007 season, Ladell Betts wore #46 for the Redskins.
Willie Reid wore number 15 for the Steelers in 2007.
Dave Concepcion, for the Reds, is in the hall and wore 13. Doyle Alexander, who pitched for several teams in the 70s and 80s, wore #13. Currently, Alex Rodriguez of the Yankees wears #13. Currently, Robert Fick of the Washington Nationals wears #13.
There were no players on the 2007 Steelers that wore the number 14. Currently, Limas Sweed wears number 14.
Jason Taylor
Mark Rypien
Pitcher Pat Misch wore the number from 2006 to 2007.
Darrell Green
Art Monk
Stallworth