Wright is entering his third season with the Mavericks. Mavericks forward Brandan Wright underwent an MRI on Thursday morning to determine the severity of an injury to his left shoulder. Mavericks backup center Brandan Wright is out indefinitely after injuring his left shoulder in practice. Wright, who signed a two-year, $10 million deal to return to Dallas after a strong finish to last season, has a history of problems with that shoulder. The 6-foot-10 Wright injured the shoulder multiple times during his stint with the Golden State Warriors, for whom he played in 98 games over parts of four seasons after being selected with the eighth overall pick in the 2007 draft. He missed the entire 2009-10 season after undergoing surgery on the shoulder. He started his career at Golden State and had a brief stint with the Nets. Dallas opens the season Oct. 30 against Atlanta.