Three-time NBA All-Star wing Khris Middleton's offseason wrist surgery will prevent him from joining the Milwaukee Bucks for "the first few weeks of the regular season," per The Athletic's Shams Charania.

Middleton reportedly underwent surgery to repair a torn ligament in his left wrist in early July, nearly two months after Milwaukee's season ended in the second round of the Eastern Conference playoffs. He also missed the Bucks' final 10 games of the playoffs after suffering a Grade 2 left MCL sprain in the first round.

Middleton confirmed the surgery on media day in late September, initially telling reporters he hoped to be available "soon after" Thursday's season opener against the Philadelphia 76ers. He said he first began experiencing pain in his wrist "sometime around after the All-Star break," and it "just never went away."

The Bucks took precautionary measures with a number of integral players throughout last season, easing them into their 2021 title defense after playing into late July and sending multiple players to the Olympics.

Milwaukee finished last season with a 51-31 record. A three-way tie for the East's second-best record left the Bucks with a No. 3 seed and a road Game 7 against the Boston Celtics in the conference semifinals. They lost in blowout fashion and desperately missed Middleton's playmaking punch throughout the series.

Middleton averaged 20.1 points (44/37/89 shooting splits), 5.4 rebounds and 5.4 assists per game last season, making his third All-Star appearance. Prior to his MCL sprain in the playoffs, he had been relatively healthy since tearing his left hamstring and playing just 29 games in the 2016-17 season. Middleton turned 31 years old in August. He has two years left on the five-year, $177.5 million contract he signed in 2019.

Bucks guard Pat Connaughton is also expected to miss the next three weeks with a right calf strain, the team announced on Sunday, and free-agent acquisition Joe Ingles is still recovering from a torn left ACL.

Veteran wing Wesley Matthews is questionable for opening night with an ankle injury.

In their absence, Grayson Allen, Jordan Nwora, George Hill and Jevon Carter should see more minutes. Milwaukee has nine games on its schedule inside the three-week timeline for Middleton and Connaughton.

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Ben Rohrbach is a staff writer for Yahoo Sports. Have a tip? Email him at rohrbach_ben@yahoo.com or follow him on Twitter! Follow @brohrbach