The DePaul forward had averaged 15 pts. and 13 rebounds through the first three games of the season.
Per sources, Mac Koshwal was diagnosed with a cracked bone in his left foot during an evaluation on Monday.
Koshwal was also treated for Plantar Fasciitis on the same foot after missing one game last season.
"We're still waiting on a final medical evaluation," DePaul coach Jerry Wainwright told FOXSports.com.
The source told FOXSports.com that Koshwal won't need surgery.
The Blue Demons take on Alabama State on Wednesday night at Allstate Arena.
DePaul's Koshwal Sidelined 4 to 6 Weeks
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