WATCH: Can Diego Costa overcome Arsenal? The Goal Pressure Index Week One

Premier League leaders Chelsea host third-placed Arsenal this weekend hoping to end the Gunners’ title challenge.

Victory at Stamford Bridge would send Antonio Conte’s side 12 points clear of Arsenal.

Chelsea will need striker Diego Costa in form, and luckily for the Blues he has been performing under pressure all season.

The Spain international leads the Goal Pressure Index, presented by Sure and powered by Opta data, which provides the first ever system to measure and rate a team and player’s performance under pressure.

The Goal Pressure Index uses more than 750,000 data points as well as factors including league position, point in the season and the opposition to calculate a rating out of 100 for every Premier League player every week.

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But Costa will have to best Arsenal defender Laurent Koscielny, who stands second in the Goal Pressure Index.

The Pressure is on.

The Goal Pressure Index is presented by Sure, Official Partner of Chelsea FC, Everton FC and Southampton FC. Join the conversation on Twitter @Sure.