Liverpool's UEFA Champions League semi-final opponents Villarreal have a number of injury concerns ahead of Tuesday's second-leg tie.
The Reds head to Spain with a 2-0 lead and are seen as favourites to progress to the final where they will meet the winners of Real Madrid vs Man City.
Villarreal knocked out Bayern Munich in the quarter-finals and will be up for the fixture as they look to mount a major comeback. But they may have to do so without a number of key players. Monday morning's training session saw six players miss out, some due to long-term issues and others were unexplainable by their absence.
