The Celtics traded Noah Vonleh to the Spurs on Thursday to clear a roster spot, and Bobby Manning explained why ahead of his contract guarantee date. Boston will receive a second round pick that's unlikely to convey in the deal. Justin Jackson, who also will see his contract guaranteed on Saturday, could move next in a similar deal or waiving.\nGo to https://rocketmoney.com/GARDEN and cancel your unnecessary subscriptions right now!\nVisit https://athleticgreens.com/GARDEN for a FREE 1 year supply of immune-supporting Vitamin D & 5 FREE travel packs with your first purchase!\nLearn more about your ad choices. Visit megaphone.fm/adchoices