Robert Williams, the 27th pick of the Boston Celtics in this year's draft, hasn't been cleared for 5-on-5 drills just yet. But the 20-year-old hopes to be ready soon.

As reported by Jay King of The Athletic, the 6-foot-10 forward is aiming to be cleared by training camp.

Williams is currently dealing with knee tendinitis — an injury which he sustained in his first Summer League game against the Philadelphia 76ers. Williams shared an update on his knee and said:

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“It’s a case of tendinitis. … It’s been coming good so far. I’ve been working hard to get back to where I’ve been, where I was at.”

Right now, he's working individually together with the Celtics' staff. Though his movements are limited, Williams shared that he's still working closely with head coach Brad Stevens. Williams revealed that Stevens is already teaching him the ins-and-outs of the Celtics playbook. As reported by Tom Westerholm of Mass Live, Williams said:

“Obviously my knee, obviously knowing what's going on out there on the court, knowing the calls before (Brad Stevens) throws in me a 5-on-5 game. He's been teaching me actually the past couple days, just hammering in the calls, all the play names, all the big names for things, so it's just been a great perspective, a great opportunity.”

Fortunately for the rookie big man, the Celtics can afford to wait for him to be fully healthy.