As we approach the conclusion of what has arguably been the most unpredictable, exhilarating Premier League campaign to date, every prized position is still up for grabs.
The form book has consistently been ripped up as four teams have emerged as genuine title contenders, ahead of toiling defending champions Manchester City.
Add a relegation battle engulfing nearly the entire bottom half and there is not a single game heading into the close of the campaign that should be rendered meaningless, at least not yet anyway.
With upsets a regular feature this season GMS has decided to profile the teams who have had the most success against Chelsea, Arsenal, Liverpool and Manchester City this season, with a nod to who might have the biggest impact on the tightest title race in over a decade.
Click ahead to look at the top 10 sides who continue to rise to the occasion against the big boys, with surprising results.