article_snippet: The Manchester United striker lies motionless under a chair for several seconds before the video, obtained by The Sun, cuts out.
article_snippet: the video is believed to have been filmed on February 22, the day after United lost 2-1 at Swansea.
article_snippet: Given Wayne skipper's United, the forward is a regular for Louis van Gaal's men.
highlights_snippet: The sparring session took place in Wayne Rooney's mansion .
  
highlights_snippet: The sparring session happened the day after United lost to Swansea in February .
  
highlights_snippet: The Manchester United striker lies motionless and the video ends .
  
highlights_snippet: : Was Wayne Rooney a knockout against Tottenham at Old Trafford?