Walcott says they must be ready to ‘win dirty’ in order to have a chance of winning a major trophy this season.
“I think we need to do the dirty things right,” the England international told the club’s official website.
“Sometimes it’s not just about pretty football, we need to grind out the results sometimes and get the win, get the three points.
“In cup competitions no one remembers the game, as long as the result is right. We need to take that into our game.
“Manchester United and Chelsea do the dirty work and they take their chances as well, that’s another thing we need to learn and improve on.
“We had a great experience of getting to semi-finals last season but not quite getting to finals. Hopefully we can put that right.”
