Coach likes - but doesn't love - chances

Liu Xiang has come back strong, but his opponents won't allow him an easy path to glory in London, the Chinese track and field team's head coach warned.

After winning three consecutive outdoor events in world-class times, Liu has shown he has fully recovered from his foot injury and is a hot favorite for the Olympic gold medal in the 110 meter hurdles.

The 28-year-old beat major rivals, including the United States' reigning world champion Jason Richardson and 60m indoor world champion Aries Merritt, with fine performances at the Japan Grand Prix, the IAAF Diamond League's Shanghai and Eugene, Oregon, meets in recent times.