Everton boss Roberto Martinez has admitted they fear Romelu Lukaku suffered an ankle ligament injury in Tuesday's 4-0 defeat to Liverpool.

On-loan striker Lukaku was stretchered off just after Liverpool's opening goal at Anfield after colliding with Everton team-mate Gareth Barry while defending a Liverpool corner.

Martinez admitted the injury did not look good and is waiting to find out the full extent of the problem.