"Everyone knows Ryan is a fantastic player," said the striker.
"He played on the right wing and he gave me a fantastic cross which was easy for me to attack the ball and score. It is easy for a striker when the cross is as good as that.
"He is a player with quality who can do things like this, so without Ryan I couldn't have scored. It's thanks to him I could score the goal to win it for us.
"We knew before the game that this was a difficult place to come and win. West Ham are a very good team at home but we now have momentum and we got the win.
"We played really well and we deserved it. We need to keep playing like this and keep working hard, because when every player plays well and works so hard then it's difficult for any team to beat Liverpool."