Prigioni exits with sprained right ankle

Knicks backup point guard Pablo Prigioni suffered a sprained right ankle late in the second quarter of the Knicks’ 98-95 loss Wednesday to the Pistons after stepping on the foot of Brandon Jennings and his availability for the back-to-back against Brooklyn and Atlanta on Friday and Saturday is very much in doubt.

Prigioni limped badly off the court, to the locker room, helped by trainer Roger Hinds. X-rays were negative, but Prigioni didn’t return.

“Not too bad,’’ Prigioni said as he limped to the bus after the game. “Let’s see tomorrow.’’