For the first time since Jurgen Klopp's debut season in England, Arsenal will be heading into their match against Liverpool as favourites.
Mikel Arteta's side are two points off the top of the Premier League - with a game in hand over leaders Manchester City - while Klopp's team find themselves in tenth - unfamiliar territory for last year's Champions League finalists.
With the Gunners looking to extend their lead at the top and Liverpool desperate to claw themselves up the table, Sportsmail takes a look at the five crucial factors that could define the clash at the Emirates.