The Pistons took Mitchell and Siva in the second round of this year's draft. Siva has appeared in 13 games with the Pistons, averaging 5.8 minutes. The Pistons announced the moves on Thursday. The Detroit Pistons have assigned rookies Tony Mitchell and Peyton Siva to the Fort Wayne Mad Ants of the NBA Development League. Siva, the 56th selection in the draft, won an NCAA championship as a senior at Louisville. The Pistons announced the moves on Thursday. He was drafted 37th overall out of North Texas.