Posted by ESPN.com's Tim Graham
The Miami Dolphins this afternoon made four roster moves.
Culver was a 2006 sixth-round draft pick of the Green Bay Packers. He played 14 games as a rookie but spent all of last year on injured reserve because of a bad shoulder. The Packers cut him Sunday.
Foster developed a bit of a cult following. He was an undrafted rookie out of Georgia Southern, where he was the starting QB as a senior. Foster has blazing speed, but is listed at 5-foot-7 and 175 pounds. He apparently was too much of a project to keep around.