PITTSBURGH STEELERS NFL FOOTBALL JERSEY #39 WILLIE PARKER BY REEBOK. Alternate jersey Large. +2 Length. The jersey is in excellent, nearly new condition. Stitched numbers and lettering on the back. Football season is nearly here! Please ask any questions and thanks for looking! William Everett Parker Jr. (born November 11, 1980)is a former American football running back who played for six seasons for the Pittsburgh Steelers of the National Football League (NFL). After playing college football for North Carolina, he was signed by the Steelers as an undrafted free agent in 2004. Two time Pro Bowler and Super Bowl winner.