 During the 2011 season MLL Championship game, Powell injured his knee and needed to be helped off the field, he had 4 goals in a 10-9 Nationals loss to the Boston Cannons in the MLL championship game, his lacrosse future in doubt.But just days later he announced that an MRI revealed no tear in his ACL, so the injury was not as serious as first thought.After playing only three games in the 2012 season, Powell retired from the MLL, but was drafted by Chesapeake Bayhawks in the supplemental draft that year.