Yao, the NBA's overall No. 1 draft pick, landed in Houston on Sunday in time to see his new team play the Orlando Magic in an exhibition game at Compaq Center.
The NBA Houston Rockets have offered a four-year guaranteed contract worth 18 million dollars to the 2002 top pick Yao Ming, said Yao's representative Eric Zhang on Wednesday.
National basketball association suggested Monday that any NBA team to draft star center Yao Ming play with them should make a written agreement on his national duties with the CBA.