Per ESPN’s Tim MacMahon, the Dallas Mavericks are planning to pick up center Willie Cauley-Stein’s $4.1 million option for the 2021-22 NBA season. The deadline is tomorrow. Last season, in 53 games played, the seven-foot big man averaged 5.3 points and 4.5 rebounds per game. The sixth-year player also shot 63.2 percent from the field