Middleton put together the best campaign of his career in 2017-18. He averaged 20.1 points, 5.2 rebounds, 4.0 assists and 1.5 steals while shooting 46.6 percent. It represented a return to form after an injury-plagued 2016-17 season, and he remained a key contributor last season despite a scoring dip (18.3 PPG).
The 28-year-old South Carolina native suffered a torn left hamstring in September 2016 that kept him out of the lineup until the following February. He didn't miss any games in 2017-18, however, and sat out just five contests last season.
Look for Pat Connaughton and Sterling Brown to see more playing time while Middleton is out.
Ultimately, the Bucks were able to navigate Middleton's absence two years ago well enough to keep themselves in playoff contention, and they earned a berth upon his return. Now they'll attempt to remain an NBA title contender while hoping he makes a quick recovery.