Miami Heat star Jimmy Butler is out for Monday's game against the Boston Celtics after appearing to injure his right knee late in a loss at home Sunday vs. the Raptors.

Heat coach Erik Spoelstra said they are considering Butler as day-to-day. Butler was listed as out with knee soreness.

"We'll see what happens when we get back to Miami," said Spoelstra. The Heat next host the Los Angeles Lakers on Wednesday.

Butler missed four games last month due to a right ankle sprain.

For the Celtics, Jaylen Brown, who missed Sunday's loss to the Cavaliers, is set to return vs. Miami.

Butler, 35, is averaging 18.9 points, 5.1 rebounds and 4.8 assists while shooting 53.8% from the field this season.