West Ham boss David Moyes says his players feel they can win more silverware.
The Hammers lifted the Europa Conference League trophy last season.
Moyes told the London Evening Standard: The start we've made has been fantastic, and it could have been even better, since we were 1-0 up at Bournemouth in the opening game, only for them to equalise in the 85th minute.
We followed that up by beating Chelsea and after that we've been on the road with wins at Brighton and then Luton.
I do believe these players, after our European success, realise they can match the best and compete against the top teams and they don't come much better than this weekend against Manchester City.
We're all hugely proud of what we have achieved, but there's also the feeling that, with one trophy in the cabinet, let's see if we can add to it."