DETROIT (AP) — The Detroit Pistons have exercised their team option for the 2020-21 season on Luke Kennard.The Pistons also announced Thursday that they signed guard Craig Sword and waived Todd Withers.The 6-foot-6 Kennard averaged 9.7 points last season and shot 39% from 3-point range. He was a first-round pick by Detroit in 2017.Sword spent the last two seasons with the Erie Bayhawks of the G League.___More AP NBA: https://apnews.com/NBA and https://twitter.com/AP_Sports