Houston, TX -- (Sports Network) - Houston Rockets All-Star center Yao Ming will have to try a new treatment to heal a hairline fracture in his left foot.

The team announced Yao underwent a medical evaluation by Rockets team physician Dr. Tom Clanton Wednesday. The exam revealed that the hairline fracture in Yao's left foot has not responded to the current treatment program. A bone scan conducted Wednesday night at Memorial Hermann Sports Medicine Institute revealed that the hairline fracture on the top of the foot has not yet healed.

Yao and the team will consult with doctors who have previously cared for the center before proceeding with a new course of action. No timeline has been set for his return to basketball activities.

"Yao is not experiencing any pain in his left foot, however, the results from the CT and bone scans we performed over the past two days indicate that the hairline fracture has not responded to the degree that we expected," said Clanton. "We will review a variety of treatment options before proceeding."

The fracture was discovered following Houston's Game 3 loss to the Los Angeles Lakers in the Western Conference semifinals.

Yao missed only two out of 246 games in his first three years in the NBA, but he's been hit with injury problems since then. In April 2006, he suffered a broken bone in his left foot and the following season played in just 48 games after suffering a right knee injury. Yao was limited to 55 games in 2007-08 due to a stress fracture in his left foot, but he returned to play in the Beijing Olympics and missed just five regular season games in the 2008-09 campaign.