UCLA is awaiting the results of an MRI on guard Jaylen Clark's right foot, head coach Mick Cronin told reporters.
The 6-foot-5 junior was hurt during the fourth-ranked Bruins' 82-73 home win against No. 8 Arizona on Saturday.
Clark, considered UCLA's top defender, exited early in the second half. He later returned to the bench on crutches.
Clark is averaging 13.0 points, 6.0 rebounds and 2.6 steals in 30 games (29 starts) this season.
The Bruins (27-4, 18-2 Pac-12) are the No. 1 seed in the conference tournament. They have a first-round bye and will play either Washington or Colorado in the quarterfinals on Thursday.
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