LAS VEGAS — Celtics guard Marcus Smart removed himself from Tuesday’s Team USA workout due to left ankle soreness but stressed that he was simply exercising caution.

"Just kinda taking a precautionary option right now,” said Smart. "It’s only Day 2 so you don’t want to push anything and do anything stupid.”

Smart said he didn’t injure himself in any sort of on-court incident, he simply felt soreness and made the decision to downshift. Smart was sitting on the trainer’s table with his left ankle wrapped in ice when practice opened to reporters.

Smart was still able to slip on his socks before joining his Celtics teammates for a “Team Shamrock” photo after the workout.

“Gotta be smart … My availability is important so taking it easy on Day 2, as an athlete as you grow and mature, you learn to [be careful],” said Smart.

Smart was asked if he plans to be back on the court for Wednesday’s workout.

"I will be out there,” said Smart. "Like I said, just a little sore today. Go get the treatment on it, precautionary reasons. We got a great training staff here and they’re going to do a good job of making sure they get me back out there.”

Smart is one of four Celtics players vying for a spot on the final 12-man roster that will head overseas for the FIBA World Cup. He’s repeatedly stressed how much it means to him to simply have a chance to compete for Team USA this summer.

“We’re playing for something greater than ourselves,” said Smart.


Click here to download the new MyTeams App by NBC Sports! Receive comprehensive coverage of your teams and stream the Celtics easily on your device.