For those of you with tickets to the Sky-L.A. Sparks exhibition game Thursday at the Sears Centre, there’s going to be a bit of a letdown but for a good reason. Naperville native and Sparks rookie Candace Parker, the No. 1 pick in the WNBA draft, isn’t coming. Instead, she’s staying in Knoxville, Tenn. where she will participate in graduation ceremonies on Friday at the University of Tennessee. Sky fans will have a chance to see Parker in her first pro game on June 3, when the Sparks come back to Chicago and play the Sky at the UIC Pavilion.