China's Liu Xiang celebrates winning the men's 110m hurdles final at the 16th Asian Games in Guangzhou, Guangdong province, Nov 24, 2010. [Photo/Agencies]

Chinese star hurdler Liu Xiang has undergone a physical check-up in Los Angeles and his Achilles'tendon is recovering well, Youth Daily reported.

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Liu Xiang flew to Los Angeles last December for a half-month winter training course.

He endured extremely hard training in Los Angeles but the injury did not cause him much trouble. The news came as a relief to his coach Sun Haiping.

Previously under hard training the injury would cause problems.

Liu plans to be back to China before Jan 11, 2011 for a social activity.