Bucks make surprising decision regarding three-time All-Star

Middleton, 33, is averaging his lowest points per game (12.7) since 2014 and has played just 12 games this season due to the same ankle injuries that have bothered him over the last two seasons.

Most recently, Middleton missed the Bucks' previous game against the Raptors, a 128-104 win for Milwaukee. In Middleton's absence, journeyman wing Taurean Prince started and was a team-high +30. 

Prince will likely remain in the starting lineup moving forward, as he has been the regular starter when Middleton has missed time. He is averaging 7.5 points, 3.9 rebounds and 1.9 assists per game while providing a solid defensive presence on the wing. 

It is unknown if Middleton will return to the starting lineup at any point, but this comes as a shock to many, as despite his lack of production, he still remains a relatively consistent offensive presence for the Bucks. This decision also comes a month away from the trade deadline, and with the Bucks being tangled in Jimmy Butler rumors, this could be a precursor for a big move. 

Regardless, this Bucks team has lost four of their last six and has been struggling for most of the season, sitting at 18-16. A change was needed. Only time will tell if Doc Rivers is making the right call.