Everton boss Ronald Koeman expects a busy winter market.

Koeman admits Yannick Bolasie's injury will force them into action.

Speaking ahead of Saturday's game at Watford, Koeman said: "It is an opportunity for other players who maybe did not play a lot in the last few weeks and we know we need competition.

"We need a big squad as it is a big month coming up with a lot of games and we need everyone at a good level.

"Still we are looking for some good options (in the transfer window) and maybe the necessity now is a little bit more than before because we have lost Yannick for a long time."