The OKC Thunder have agreed to a 2-year contract with free agent big man Hasheem Thabeet, reports the Oklahoman: “The deal cannot officially be signed until the league’s free agent moratorium period is lifted on July 11. Financial terms of the deal were not immediately known, but the contract, which will be fully guaranteed for both seasons, is believed to be a minimal salary, or roughly $880,000 in the first year of the contract. Thabeet will join his fourth team in four seasons after being drafted by Memphis in 2009. He was taken one spot ahead of Thunder guard James Harden, but the 7-foot-3 center has had a disappointing start to his professional career after earning Defensive Player of the Year honors in his final two seasons at Connecticut. In 135 games, Thabeet has averaged 2.2 points, 2.7 rebounds and 0.9 blocked shots. Oklahoma City has been enamored with Thabeet since his college days and was widely believed to be strongly considering selecting him, if available, with the third overall pick. Memphis plucked Thabeet second overall in part because the Grizzlies thought Oklahoma City would take him if they didn’t. [...] The addition of Thabeet all but guarantees veteran center Nazr Mohammed will not return to the Thunder. If not, that paves the way for third-year center Cole Aldrich to step into the primary backup role behind starter Kendrick Perkins. Thabeet is expected to be the third-string center.”