DALLAS -- The left ankle injury suffered by Mavericks superstar guard Luka Doncic is "not too serious," a source told ESPN.

Doncic is expected to sit out Wednesday's road game against the Phoenix Suns, but the Mavs are optimistic that he will not be sidelined for an extended stretch, sources said.

Doncic injured the ankle with 44 seconds remaining in Monday's win over the Denver Nuggets after contesting a driving layup by guard Austin Rivers, who fell onto Doncic's leg.

Doncic immediately hobbled to an empty courtside, sitting down and clutching his left ankle before limping to the locker room.

Doncic was not made available to the media postgame because he was receiving treatment on the ankle.

The Mavs did not practice Tuesday before departing for a four-game road trip featuring a pair of two-game sets against the Phoenix Suns and LA Clippers.

Doncic has a history of ankle sprains. He missed a total of 11 games during the 2019-20 season due to right ankle sprains. He played the last three games of the Mavs' 2020 playoff series despite a left ankle sprain.

Doncic, a first-team All-NBA selection the last two years, is averaging 24.9 points, 8.3 rebounds and 7.9 assists per game for the 9-4 Mavs.