3. Maintaining winning form

Of course, wins are crucial throughout the entire course of the season but they're now starting to take on greater importance.
Arsenal's victory against Tottenham was their first in the league since New Year's Day and they must be looking to build on that with another three points against Villa. As shown in the second part of last season, a team essentially needs to be perfect to win the Premier League and while Arsenal went so close, Villa proved to be their downfall.
Asked whether perfection is required from his side to win the title, Mikel Arteta said: "We're going to try to be as good as we possibly can tomorrow night, that's the objective. They are a really good side, that's why they beat us last season and proved as well when we played at Villa Park that they are very difficult opponents, so we'll prepare in the best way to win."
If the Gunners are to go one better than last season, they need to take each game as they come. Villa are a tricky hurdle, but a victory on Saturday will put them on course to maintain a run of winning form. Liverpool have dropped points in their last two league games and they've got an awkward test at Brentford this weekend.