First-round pick D-J Wilson will be getting a lot of the attention when play opens for the Milwaukee entry in the N-B-A Summer League Friday. Other young Bucks on the roster include Thon Maker, Gary Payton the Second, Rashad Vaughn and former U-W Badger standout Bronson Koenig.  The young Bucks open play against the Cleveland Cavaliers entry in Las Vegas.  Games against Brooklyn Sunday and the L-A Clippers next Monday will follow.  A single-elimination tournament will produce a Summer League champion July 17th.