With four months of the Premier League season remaining, there's everything to play for at both ends of the table: a single point separates the bottom four while six sides are still in the running for the four Champions League places.
Who will be each side's decisive player between now and May? Here's our pick for every team.
Chelsea: Diego Costa has dominated the headlines for both positive and negative reasons, but Eden Hazard has been absolutely magnificent this season. Few other Premier League players are capable of both running matches and providing crucial contributions in the final third as the Belgian, who has managed nine goals and three assists this season.