The Houston Rockets have signed Joey Dorsey to a two-year, $2 million contract to replace Omer Aski as center Dwight Howard's backup, according to Yahoo! Sports' Adrian Wojnarowski.

The Rockets have been focusing on rebuilding their depth after parting ways with Asik, Chandler Parsons and Jeremy Lin this offseason. Dorsey, 30, has not played in the NBA since 2011. In parts of three NBA seasons, he owns modest averages of 2.6 points and 3.8 rebounds in 61 career games.

Dorsey was the No. 33 overall pick out of Memphis in 2008, and landed with the Rockets in a draft-night deal. He spent less than two seasons with Houston before spending time with the Sacramento Kings and Toronto Raptors.

Only once has Dorsey averaged double-digits in minutes played, and he is a 46.8 percent career free throw shooter.

He signed with Spanish ACB League club Caja Laboral in September 2011, only to have his contract terminated four months later and signed on with Greek Basket League powerhouse club Olympiacos until the end of the season.

Dorsey re-signed with Olympiacos for two years in September 2012, but was released two months later after publicly criticizing the team. He landed with Turkish Basketball League club Royal Hali Gaziantep until the end of the season and ultimately signed with Spanish team FC Barcelona in July 2013.