Brown (thigh) has been ruled out for Wednesday's game against the Pistons, Justin Turpin of WEEI.com reports.
Brown is tending to a bone bruise in his left thigh and will rest up for the second leg of a back-to-back set after scoring 25 points in Tuesday's win over the Raptors. His absence could clear the way for Sam Hauser and Al Horford to absorb more minutes at forward.