RALEIGH, N.C. -- Mercer likely won't have senior center Monty Brown for Sunday's NCAA tournament game against Tennessee due to a possible concussion.

Brown was injured late in the first half of the 14th-seeded Bears' 78-71 upset of third-seeded Duke on Friday in the Midwest Regional. Coach Bob Hoffman said Saturday that Brown "hasn't been completely ruled out but it doesn't look good."

Hoffman said Brown was resting at the hotel in a dark room and doesn't remember anything from Friday after fixing breakfast.

Mercer could use the 6-foot-11, 250-pound Brown inside against the 11th-seeded Volunteers. Tennessee's frontcourt tandem of Jarnell Stokes and Jeronne Maymon had double-doubles in an 86-67 second-round rout of Massachusetts, with Stokes scoring a career-high 26 points to go with 14 rebounds.