Mavericks' Kristaps Porzingis (back) out vs. Kings

Dallas Mavericks center Kristaps Porzingis will not play in Sunday afternoon's game against the visiting Sacramento Kings.

Porzingis, 26, has been dealing with lower back tightness since the Mavericks' 116-106 win over the Houston Rockets on Tuesday.

Porzingis is off to a slow start this season, averaging 12.7 points and 6.0 rebounds per game in three starts. He's shooting just 23.5 percent from 3-point range, well shy