Everton boss Marco Silva admits it's a blow to lose Jean-Philippe Gbamin, as he was just "finding his feet" in the Premier League.
The summer signing has been ruled of action for at least two months after picking up a thigh injury in training.
Silva hopes Gbamin stays mentally strong during his lay off and comes back better than ever.
"It's a tough moment for him of course, and we are here to support him as much as we can because it's not an easy moment.
"But it's part of the football, it can happen. He had his debut in the first game against Crystal Palace, everything was so fast for him after coming in at the end of the market. He played the whole match against Watford as well.
"The player knows what's happened now, and it's up to us to put him in the best condition as fast as we can.
"I think our medical staff was clear with the situation. It's something day by day we'll see how he can be. For the moment we can talk to you about between six to eight weeks, it's the type of situation we have to see day by day.
"But, in this moment, that's the target we have for him...I said after the Aston Villa match it's something we didn't expect after we saw a muscle injury.
"But the scan gave this feedback for us and now it's a matter for us to try and get the player ready again as fast as we can."
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