MIAMI -- Looking to fill their final spot on the roster, the Miami Heat hosted a workout for free agent center Josh Harrellson on Thursday morning, a league source told ESPN.com. The 6-foot-10 big man was waived last week by the Houston Rockets in order to make room for newly signed guard Carlos Delfino.

Harrellson averaged 4.4 points and 3.9 rebounds while shooting 33.9 percent from downtown last season as a reserve big man for the Knicks before being traded this offseason to the Rockets in a package for center Marcus Camby.

A rare rebounding big man who can stretch the floor, Harrellson joined Minnesota Timberwolves forward Kevin Love and Milwaukee Bucks forward Ersan Ilyasova as the only qualified players last season to average over nine rebounds and make at least one 3-pointer per 36 minutes on the floor. Though he lacked the height of a traditional center, Harrellson primarily backed up Knicks center Tyson Chandler last season.

After signing 3-point shooting wings Ray Allen and Rashard Lewis, Miami is aiming to fortify its front line that consists of Chris Bosh, Joel Anthony, Dexter Pittman and Udonis Haslem. With 14 players signed for next season, there is one spot remaining to complete the 15-man roster. Harrellson started four games last season for the Knicks, but the rookie played only 25 minutes in four postseason games against Miami.

Because the Heat have already used the taxpayer’s mid-level exception to sign Allen, Miami would only be able to offer Harrellson a minimum contract for 2012-13. Under the new collective bargaining agreement, the Knicks would have to wait until July in order to sign fan favorite Harrellson.