"Obviously, I want to be starting every game and I missed four in a row which was frustrating. But then I came in for the European game and scored two so I don't see being left out as affecting my form," said the England striker.
"When you are at a club like Liverpool there is chopping and changing and you just have to put up with it, I suppose.
"The manager has his decisions and he goes into each game a different way. If he sees [Craig] Bellamy and [Dirk] Kuyt as the best way to play against the opposition defence then he plays them, and against Galatasaray he wanted to play me. I don't think it's a case of form.
"We've grown up in England with the view that when you've done well and scored, you play next week. The manager at Liverpool likes to rotate and he gets results so you can't complain.
"You have to accept it. I'm not going to bash doors down if the manager is getting results. I want to be playing, I'm a little bit frustrated and I want to carry on my good form that I've been showing but if the manager wants to rotate then there's not much I can do about it."