Cooper Flagg will end up missing his first All-Star weekend after all.

The Dallas Mavericks rookie underwent an MRI on Wednesday that revealed a left midfoot sprain, the team announced. He will now miss the team's matchup with the Los Angeles Lakers and the Rising Stars game on Friday.

While Flagg is sidelined, he is not expected to miss any further time due to the injury, according to ESPN's Tim MacMahon. The Mavericks will return from the All-Star break on Feb. 20 for a matchup against the Minnesota Timberwolves, giving Flagg more than a week to recover. 

This post will be updated with more information shortly.