Houston Rockets center Omer Asik has formally asked the team to trade him in the wake of the team landing Dwight Howard in free agency. But the Rockets have no plans to grant Asik's wish, sources told ESPN.com.

Asik has threatened to leave the Rockets in free agency if he's not traded, sources said. However, Houston has him under contract for two more years at a total of $20 million.

While many Rockets players rejoiced at landing Howard last week and spread cheer on their Twitter accounts, Asik had a different reaction.