Damian Lillard will be sidelined for the Portland Trail Blazers' next few games after an MRI scan confirmed he suffered a grade one calf strain in Saturday's 118-113 loss to the Utah Jazz.

The 32-year-old All-Star already missed four games this season with a calf injury, but this issue is in a different area to his previous injury.

The Blazers confirmed on Sunday that Lillard "will be re-evaluated in one to two weeks", meaning he will likely miss their upcoming games against the Milwaukee Bucks on Monday, the Cleveland Cavaliers on Wednesday and the New York Knicks on Friday.

"An MRI taken Saturday night postgame vs. Utah on Trail Blazers guard Damian Lillard revealed a grade one strain to the soleus muscle in the right lower leg," the Blazers said.

Lillard left Saturday's game in the third quarter with 13 points from 27 minutes. He said after the game that "the last time was worse".

"When I first strained it, I knew right away. The reason I took myself out is so hopefully this time we can get ahead of it instead of me staying out there and putting myself in a worse position."

Lillard is averaging 26.3 points and 7.0 assists this season for the Blazers, who are 10-6 and third in the Western Conference.