Mirotic suffered a slight fracture of his left thumb and will miss at least two-to-four weeks.
The playoffs will begin on Saturday, April 13.
No Giannis tonight for shorthanded Bucks in Cleveland. Meanwhile, Coach Bud said Nikola Mirotic would be back ahead of a 2-4 week timeline, and was not concerned about his availability for the start of the playoffs
— Joe Vardon (@joevardon) March 20, 2019
The Bucks acquired Nikola Mirotic from the New Orleans Pelicans at the February trade deadline.
In 14 games with the Bucks, Mirotic is averaging 11.6 points, 5.4 rebounds and 1.4 assists per contest while shooting 41.5 percent from the field, 35.6 percent from beyond the arc and 87.0 percent from the free-throw line.
Milwaukee has the best record in the NBA at 53-18. They have already clinched a playoff spot and will likely have the No. 1 seed in the postseason.
Mirotic has played in 26 playoff games. He has averages of 9.6 points. The 28-year-old was very productive last season for the Pelicans in the 2018 playoffs. Mirotic put up 15.0 points in nine games for the Pelicans and was a big reason why New Orleans swept the Portland Trail Blazers in the first round.
After Wednesday's game against the Cleveland Cavaliers, the Bucks will have 10 games left in the regular season.