Marcus Thornton out tonight with minor ankle injury

The Celtics bench will be missing a spark in Marcus Thornton tonight. According to's Jay King, the shooting guard twisted his ankle in practice and did not finish the workout. Thornton is being monitored and the staff is gauging the damage.

"To be determined the severity of it," Stevens said. "The first look looked mild and (like it) will be a day-to-day type thing, but we don't know that for sure."

Stevens noted that Thornton walked off the floor, and trainer Ed Lacerte indicated it seems like a day-to-day thing.

The Thornton-less Celtics host an injury plagued version of the Oklahoma City Thunder tonight at 7:30 ET.