Every professional sports team has their rival. For the Dallas Mavericks, that rival is the San Antonio Spurs, and it has been for many years. The biggest problem with the Mavs-Spurs rivalry is that the Spurs had the upper hand way more than the Mavs did.
The Dallas Mavericks and San Antonio Spurs met in the playoffs only 6 times up to this point. Those series took place in 2001, 2003, 2006, 2009, 2010 and 2014. Because this is a great rivalry, none of the series have resulted in sweeps. The Spurs do own the head-to-head in playoff series, 4-2 and they own the regular season matchup as well, 108-68.