Arsenal host Chelsea in the main event matchup this weekend in the Premier League - and both teams will be hungry for the three points, for differing reasons.
The Gunners remain top of the table but have dropped four possible points in their last three games, allowing second placed Manchester City to eat away at their advantage.
A loss in this game could allow Pep Guardiola's side to move level on points - and likely move ahead on goal difference.
As for Chelsea, Liam Rosenior has maintained an unbeaten league record so far, but has similarly given up points to lower league opponents; his side suffered a late equaliser against second-from-bottom Burnley in their last game.
They face the most difficult stretch of fixtures out of any team - and will have to find wins from somewhere if they hope to maintain participation in the Champions League.
Arsenal
Bukayo Saka picked up a small knock in Arsenal's 4-1 victory over Tottenham - but was pictured celebrating with his teammates at full time, so the winger is expected to keep his place.
Kai Havertz haunted his former side with a goal in the second leg of the Carabao Cup tie - but he himself has been haunted with injury woes for large parts of the season. Arteta confirmed the forward would train prior to the game, but a late call will be made regarding his involvement.
Mikel Merino will continue his rehabilitation after undergoing surgery on his foot at the beginning of the month.
Defender Ben White and midfielder Max Dowman are the only other absentees for the league leaders.
Chelsea
Wesley Fofana was awarded Chelsea's sixth league red card of the season, and is unavailable for selection. Benoit Badiashile is expected to fill the gap.
Several squad players look to have overcome injury, which will be a big boost for Rosenior. Reece James played a full ninety minutes in the 1-1 draw against Burnley, and the skipper is expected to keep his place.
Romeo Lavia was an unused substitute in that game; the Blues head coach said he was getting 'stronger and stronger' after also featuring with the U21s.
Goalkeeper Filip Jorgensen and midfielder Dario Essugo are also pushing for a return after making full returns to team training.
As for the absentees, winger pair Estevao Willian and Jamie Gittens are both out with injury, whilst Sunday's game will come too soon for Marc Cucurella, who is overcoming a hamstring issue.
Predicted Lineups
Arsenal
Raya; Timber, Gabriel, Saliba, Hincapie, Zubimendi, Rice, Saka, Eze, Trossard, Gyökeres.
Chelsea
Sanchez; James, Chalobah, Badiashile, Hato, Caicedo, Santos, Palmer, Fernandez, Neto, Pedro.
Players to Watch
Arsenal: Viktor Gyökeres
It's taken some time for Viktor Gyökeres to adapt to life back in English football - but his performance against London rivals Spurs will give Arsenal fans plenty of promise.
It was his best outing for the club to date, as he picked up two goals from a total xG tally of just 0.32.
He also did well to recover the ball whenever Arsenal lost possession, keeping the pressure on a Tottenham team that looked lost and hopeless.
In comparison, Sunday's game against the Blues will be a tougher test, but Gyökeres will have positive momentum heading into the matchup.
Chelsea: Joao Pedro
Like their London rivals, Chelsea also spent big on a striker in the summer - the only difference being Joao Pedro took no time to get up and running.
The Brazilian is undergoing a purple patch in the league as of late. He has found the net in five of his last six league outings - an impressive tally that moves him to fourth in the league ranking this season, ahead of the aforementioned Gyökeres.
Pedro has also shown versatility in his roles, and is happy to drop into a deeper, second striker role alongside Liam Delap, if needed.
Arsenal's defence is far and away the best in the league, so Chelsea will be hoping their star man is on top form in this game.
Match Facts
Where is the match taking place?
Chelsea make the short trip to the Emirates Stadium, which boasts a 60,000 capacity.
What time is kick-off?
Arsenal vs Chelsea will be the last kick-off of the weekend, with the match taking place on Sunday at 16:30pm GMT.
Where can I watch?
Fans in the UK can tune in to watch the game on Sky Sports Main Event.