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The injured guard got in a yelling match with Heat guard Rodney McGruder<p>At the end of the Miami Heat’s 120-92 victory over the Cleveland Cavaliers on Saturday, a bit of a brouhaha ensued. Cavaliers guard J.R. Smith, inactive because of a thumb injury, took exception to Heat guard Rodney McGruder …

Read more at CBS Sports: http://www.cbssports.com/nba/news/watch-cavs-j-r-smith-has-to-be-restrained-at-end-of-loss-to-heat/