Grizzlies swingman Ronnie Brewer will miss at least three weeks with a partially torn right hamstring.

Brewer, who was injured Friday during the Grizzlies' 100-87 double overtime loss to Miami, had his condition confirmed this morning after a magnetic resonance imaging (MRI) exam.

Brewer did not travel this afternoon with the team to New Jersey where the Griz will face the Nets Sunday evening. The Grizzlies are officially saying that Brewer will be out indefinitely and a timetable for his return will be set in a week.

Brewer needed crutches when he left FedExForum Friday night. He was walking without crutches this morning. The 6-7 swingman was acquired by the Grizzlies Thursday in a trade with the Utah Jazz. Memphis received Brewer for a protected 2011 first-round draft pick.

He came up with a steal near mid court and was sprinting toward the basket for what would have been an uncontested dunk. But Brewer stopped his dribble shortly after he crossed midcourt. He fell to the floor and grabbed his right leg, grimacing in pain as the team trainer ran to his aide.