Report: Michael Phelps to participate in two events at Charlotte Grand Prix

Michael Phelps returns to the pool in N.C. on May 15. (Christian Petersen/Getty Images)

Michael Phelps is set to make his second appearance in his comeback at a Grand Prix meet in Charlotte, North Carolina, the Associated Press reports.

Bob Bowman, Phelps's coach, told the AP that Phelps has entered the 100-meter butterfly and 200 freestyle at the May 16 Meet, though he's not sure the swimmer will compete in both.

Phelps ended his retirement two weeks ago when he swam in the Mesa Grand Prix, where he finished second to Ryan Lochte in the 100 fly.