Foster smiled: "Just do that every week! It's easy if you do it like that - we had a game plan and stuck to it really well. Their front three were dropping really deep to get the ball and we knew our game plan was working.
"Ismaila Sarr is a crazy good talent, he's so calm in front of goal and has electric pace. Buzzing.
"It's not hard is it, football?! We stuck to our task and took our chances when they came.
"We took a lot of belief when we played them at Anfield, I thought we were the better team then. There is a load more work to go."
He also said: "Liverpool are one of the best teams you're likely to see, but it's all about us for us tonight, we needed the three points.
"There's six or seven teams down where we are and if you can put a run of a few games together where you win three or four, you create a gap between you and the rest. We did it when the manager first came in, and now we need to do a similar thing.
"It's nice but there's a load more to go."
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