Aston Villa basically already managed to do that. Not that it was an unimportant game for Aston Villa, they basically managed to keep their position safe thanks to this, but at the same time we are talking about a team that destroyed Arsenals chance to win the league. Thanks to that game City got the advantage and even though Arsenal is still leading the league, that is only because City has one game missing and when they win that game they will get ahead for sure.
I think we are going to end up seeing City end up winning every game left and win the title, which will be sad for Arsenal because if they could have only won that Villa game then they would have been able to become the champions, being second place because of a single loss is a terrible feeling.
Yes Aston Villa isn't a team to be underrated because if not that they dropped form at some point this season, they were also a title contender then. Unai Emery really did a good job at Aston Villa and due to the fact that he had been an Arsenal coach before made him to apply the tactics he used in winning Arsenal and jeopardizing Arsenal's title hopes but that not withstanding, with how Arsenal have been winning their matches lately, they can still be optimistic about the league title even though Manchester city still have an outstanding match and seems to have easy fixtures in their remaining matches for this season and Arsenal has some complex matches like their match against Manchester united will not be an easy game for the gunners despite that they are more in-form than Manchester United, another match is against Everton because though Everton is not in a very good shape but let us not forget that this was a team that literally won Liverpool despite that they won in their home ground but Liverpool is not just a club any team can win just like that but for Everton to win them means Arsenal needs to play them with carefulness so that what happened to them against Aston Villa will not repeat again with Everton.
Manchester seems to be in high expectations for the league title now and every thing looks greenish in their side however anything can happen at the die minutes of the season.