The Golden State Warriors are finalizing a deal to trade center Willie Cauley-Stein to the Dallas Mavericks for a 2020 second-round draft pick, NBA sources told ESPN's Adrian Wojnarowski.

Cauley-Stein, 26, provides the Mavericks with a backup big man to replace Dwight Powell, who suffered a ruptured right Achilles tendon on Tuesday.

Dallas is sending the Utah Jazz's 2020 second-round pick to the Warriors in the deal, sources said.

After spending his first four seasons with the Kings, Cauley-Stein signed with the Warriors this offseason on a two-year deal. He's set to make $2.17 million this year and $2.28 million next year, although he has a player option in that second year.

In a separate deal, the Mavericks traded Isaiah Roby and cash to the Oklahoma City Thunder for Justin Patton. The Mavericks waived Patton to open up the roster spot for Cauley-Stein, a source told ESPN's Bobby Marks, and are using the $11.7 million trade exception created from the Harrison Barnes trade last February to acquire Cauley-Stein.

The trade drops Golden State to $2.57 million below the hard cap and saves the Warriors $5.66 million toward the luxury tax.

The 7-foot Cauley-Stein, who missed all of training camp and the preseason games because of a left foot injury, is averaging 7.9 points, 6.2 rebounds, 1.5 assists and a team-leading 1.2 blocks in 41 games with 37 starts for the Warriors.