Suns star Devin Booker will likely be sidelined at least seven-to-10 more days due to the right ankle sprain he suffered Saturday night, sources tell Shams Charania of The Athletic (Twitter link).

Booker was injured late in Saturday’s game against Houston when he and teammate Royce O’Neale got tangled up on defense. Booker immediately headed to the locker room to get his ankle checked out, and coach Frank Vogel said X-rays were negative.

Booker was held out of Sunday’s game as Oklahoma City staged a late rally to win in Phoenix. Charania notes that the Suns are 31-19 with Booker this season, but only 4-7 when he’s not available.

Phoenix plays three times this week, traveling to Denver on Tuesday before returning home for a game against the Raptors on Thursday and a meeting with the Celtics on Saturday. Booker may be able to play next Monday at Cleveland, but a 10-day absence would push his return to next Thursday in Boston.

Every game without Booker is significant for the Suns, who are currently seventh in the West and are battling to avoid the play-in tournament. He has appeared in 50 of the team’s first 61 contests and continues to be among the league’s most efficient scorers, averaging 27.5 points per game while shooting 49.4% from the field and 37.9% from three-point range.