Los Angeles Clippers at Mavericks, Game 4
(8:30 p.m. Sunday, American Airlines Center, Dallas)
TV: Bally Sports Southwest/TNT
Radio: ESPN 103.3 FM (Univision 1270 AM, Spanish)
About the Mavericks (2-1): They have come to the pivot point of this series. Either they become the first home team to win in this series, take Game 4, go up 3-1 and become the heavy, heavy favorite to advance to the second round. Or, they end up tied at two wins apiece and fumble away every shred of momentum they created with their two wins in LA to start the series . . . Apart from Game 2, Kristaps Porzingis has not found a good offensive rhythm in this series. He was 3-of-10 from the field and 1-of-4 from 3-point range…
