Free-agent center Hamed Haddadi who worked out for the Knicks on Aug. 16 might not be done with the team yet. A source close to the player says it is "still possible" that Haddadi signs with New York.

The Knicks technically have only one roster spot remaining but C.J. Leslie and Jeremy Tyler both inked partially guaranteed contracts which means they are not locks to make the official team.

Several sources have told ESPNNewYork.com in the past two weeks that the Knicks are focused on adding a big man before training camp starts in early October. The Knicks could really use another rebounder and shot-blocker especially against bigger-sized teams like the Nets and Pacers who both upgraded their frontcourt this offseason.

While there are concerns about Haddadi's mobility up and down the court another source close to the player said the Knicks are intrigued with his size and interior presence.

"He won't wow you with his athleticism but he's a high-volume energy guy and has good skills to be a good solid defensive backup" the source said who also noted that Haddadi is open to a veteran's minimum deal.

The 7-2 Iranian has been in the NBA since 2008 playing for the Grizzlies and then the Suns in the second half of last season. In about 14 minutes per game in Phoenix he averaged 4.1 points 5.1 rebounds and 1.2 blocks.