Rodrigue Beaubois, Vince Carter to start

DALLAS -- Shawn Marion's sore left knee will keep him out of tonight's game and opens the door for Rodrigue Beaubois to start at shooting guard with Vince Carter sliding over to small forward.

Without Marion, who has had to defend the league's top point guard with Delonte West (fractured finger) shelved, the Mavs have little choice but to start Beaubois and use him to defend Spurs point guard Tony Parker.

Marion likely would have seen time against Parker as well as shooting guard Manu Ginobili, who is coming off the bench tonight.

Beaubois will make his seventh start of the season and first since March 2 at New Orleans.