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Doc Rivers chats with Joey Crawford during last year's NBA Finals.Joey Crawford, who worked Game 7 of the NBA Finals last season, is part of an officiating crew for Sunday's Celtics-Lakers showdown that also features Marat Kogut and Tom Washington. This is Crawford's third Celtics assignment this season (he also reffed a an 89-84 loss to the Thunder on Nov. 19 and a 100-75 win over the Nets on Dec. 5.) Kogut was part of a the crew for Celtics-Magic on Christmas Day, but it was referee Bob Delaney that drew most of the ire from Shaquille O'Neal and his teammates.