LAS VEGAS >> The first shot splashed into the basket, seemingly restoring order to any of the worried Lakers fans that fretted over Lonzo Ball's shooting in his first Summer League game. Ball's subsequent misses may have just added to the anxiety.In the Lakers' 86-81 loss to the hated Boston Celtics on Saturday at Thomas & Mack Center, Ball posted 11 points in 5-of-13 shooting and 1-of-5 from 3-point range.