Al Horford left Thursday night's game against Cleveland with an apparent shoulder injury, but an MRI Friday revealed a complete tear of his right pectoral muscle. He will be out indefinitely, which is an obviously devastating blow to the Hawks -- the only team in the East besides Indiana and Miami that is over .500.
Horford suffered a torn left pectoral muscle in January 2012, only 11 games into the lockout-shortened season. He returned for three playoff games in May, almost four months later.
Horford had been enjoying one of the best seasons of his seven-year career, averaging 18.6 points and 8.4 rebounds while shooting 57 percent from the field in 29 games.