The Minnesota Timberwolves had an unfortunate start to the second half of their season.

In the third quarter of their first game back after the All-Star break, playing the Houston Rockets, All-Star forward Jimmy Butler went down with a knee injury. At first, the concern was that Butler tore his ACL, but an MRI on Saturday confirmed that Butler had actually suffered a torn meniscus.

That injury will require surgery, and according to Shams Charania, Butler will have that surgery in the next few days. He is expected to return in four to six weeks. However, an official timetable will not be set until after the surgery is complete.

This is still a tough blow for the Timberwolves, who have had their best season in over a decade, and look likely to head to the playoffs for the first time since 2004.