General overall view of a Spalding official NBA basketball - Credit: Kirby Lee-USA TODAY Sports
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Apr 26, 2015; Dallas, TX, USA; Dallas Mavericks forward Dirk Nowitzki (41) reacts to a call during the second half against the Houston Rockets in game four of the first round of the NBA Playoffs at American Airlines Center. The Mavericks defeated the Rockets 121-109. Mandatory Credit: Jerome Miron-USA TODAY Sports
