His concerned coach says it’s entirely possible: “Coach  Vinny Del Negro created a stir late Monday when, for the first time, he said it’s possible the inflamed tendon behind  Derrick Rose’s right ankle could keep the guard out of the Oct. 29 season opener against San Antonio. ‘Yes, it is in the realm of possibility,’ Del Negro said. ‘I hope it isn’t. But yes, it’s a concern.’ Posed the exact question last Friday, Del Negro had said that wasn’t a possibility. Reminded of this, Del Negro backtracked a bit. ‘I don’t think he will (miss the opener),’ Del Negro said. ‘But I thought he would be back the other day.”‘