Everton hit by Bolasie knee injury

The 27-year-old Democratic Republic of Congo international -- whom Everton signed for £25million ($32m, 29.5m euros) from rivals Crystal Palace in the close season -- limped off in the 68th minute of the 1-1 draw with Manchester United on Sunday.

Everton had their worst fears confirmed on Monday. "Yannick Bolasie to undergo knee surgery after scans confirmed a serious ligament injury against @ManUtd. Come back stronger, Yannick," tweeted Everton, without saying how long he might be out of action for.

Bolasie has been an ever present in the starting line-up this season for Everton, who have gone four games without a win in the Premier League after a promising start under manager Ronald Koeman.