The Grizzlies have invited guard O.J. Mayo to participate in the summer league so that he can work on his point guard skills.

Mayo, who just finished his second NBA season, is an undersized shooting guard at 6'4".

However, he hasn't decided if he'll participate given his commitment to USA Basketball.

Mayo and teammate Rudy Gay will be among the players vying for a spot on the USA squad that will compete during the World Championships at Turkey.