He told arsenal.com: "It's a normal situation for a big club [to have competition for places]. I don't do anything against both of them [Nasri and Theo Walcott], I just try to be in my best form.
"We must be together, focused on every single game and hopefully we can sort one of the titles this month. Then only three titles will be left.
"I don't think it will get easier though because we still have to play Barcelona away and the end of the season is always much tougher than games in the middle or at the start."