Uncertainty about Rooney's performance in the match against "Schalke" © EuroFootball.com

Star Wayne Rooney did not participate in yesterday's team training and may miss the return UEFA Champions League semi-final match against the "Schalke" team from Gelsenkirchen.

The 25-year-old footballer strained his ankle ligament, and his place in today's match will likely be taken by Bulgarian Dimitar Berbatov.

After recovering from a viral illness, midfielder Darren Fletcher will be able to return to the field after a long break.