By Emma Sanders

Ronald Koeman has given an update on Yannick Bolasie’s injury and it’s not good news for Everton fans.

The 27-year-old suffered a serious knee injury during the 1-1 draw against Manchester United earlier this month and Koeman has revealed Bolasie endured the first stage of surgery on Thursday.

Bolasie will now have to wait for up to 10 weeks before having the second part of his surgery and Koeman admitted he would be “out for a long time.”

“He had yesterday his first surgery. The surgery was about his meniscus, and now he has to wait for nine to 10 weeks before surgery on his anterior crucial ligament” said Koeman, as quoted by the Liverpool Echo. “He will be out for a long time.”

The Congo international will miss the Merseyside derby on Monday evening and missed the crucial 2-1 victory against Arsenal on Tuesday evening.

He is expected to be out for several months and is unlikely to return before the end of the season which has come as a major blow for Everton.

Bolasie joined the Toffees in the summer for £25 million from Crystal Palace and had notched up 15 appearances, including 12 Premier League starts prior to picking up the injury.

His absence may force Koeman to find a replacement in the January transfer window, with Memphis Depay already being lined up as a potential loan target.

Everton could face competition from Tottenham for Depay, but Ashley Young could also be available despite Jose Mourinho insisting he doesn’t want to let him leave Old Trafford.

In other Everton news, Jamie Carragher has revealed what is needed from Liverpool to beat the Blues.