Is Wonder Girls' Sohee carrying an ankle injury?

Yesterday, a video from hkentertainmentxpres surfaced on YouTube, and it appears to show a seemingly innocuous introduction of the Wonder Girls to a stage in Hong Kong. Upon closer review though, international netizens are speculating that member Sohee may be carrying a right ankle injury. If you look closely, she shows signs of discomfort starting at around 11 seconds, and she constantly shuffles and adjusts her feet for about five seconds more until she's finally able to take as much weight off the foot as possible.  It appears that she even attempts to hide her right foot behind her left foot towards the end. Anyway, check out the video below, does it look like something is wrong to you? Be aware that this is just pure speculation, as there have been no statements made, and Sohee hasn't said anything about it herself. Thanks to apet for the tip!