Arsenal aim to continue their challenge across all four major competitions when they host Bayer Leverkusen in the Champions League tonight. The round of 16 encounter is delicately balanced with the score tied at 1-1 following Kai Havertz's leveller against his former club last week. The Germany international responded to Robert Andrich's second-half breakthrough in contentious circumstances as a challenge on Noni Madueke was penalised.

Since that fixture, Arsenal have established a nine-point cushion at the Premier League summit and will retain that lead for at least a fortnight as their top-flight campaign is paused ahead of the international break. Viktor Gyokeres and Max Dowman found the net to assist Mikel Arteta's side in taking a significant stride towards reclaiming the title but their focus shifts to Europe on Tuesday.

Kasper Hjulmand's outfit travel to north London seeking to produce an upset and surprise the Premier League pacesetters, preventing them from reaching the quarter-finals. Leverkusen were part of a drama-laden stalemate with German powerhouses Bayern Munich on Saturday, which saw on-loan Chelsea forward Nicolas Jackson, former Liverpool winger Luis Diaz dismissed and three goals disallowed by VAR - including a 93rd-minute potential winner from Jonas Hofmann.

Despite Arsenal having to navigate their own difficulties against Everton on Saturday, it wasn't without its share of incidents. William Saliba suffered a head injury midway through the second half but persevered until the final whistle in a significant victory.

However, in the first half, Jurrien Timber added to Arsenal's growing list of injuries. The Dutch full-back was injured within 20 minutes following a collision with Illiman Ndiaye and received treatment on his right ankle, which proved serious enough to force him off just before half-time.

This injury puts him in doubt for the clash with Leverkusen tomorrow. He is joined by Mikel Merino, who is confirmed as absent whilst he recovers from an ankle injury that required surgery.

Martin Odegaard is also uncertain after missing the victory over Everton on Saturday. Odegaard was seen observing from the stands as he aims for a full recovery from a persistent knee injury.

In his programme notes, he stated: "I'm desperate to get back to playing as soon as I can. It's been difficult for me with the knee injury lately, but I'm working as hard as I can to get back to full fitness now. The main thing is to be 100 per cent again, and make sure I can properly help the team."

Leandro Trossard was additionally unavailable on Saturday following his withdrawal with an upper leg/hip problem during the opening period of their FA Cup victory over Mansfield Town. However, he was spotted in training on Monday morning.

The Bundesliga outfit encounter numerous injury concerns ahead of their journey to the Emirates Stadium.

Elisse Ben Seghir, former Brentford goalkeeper Mark Flekken, Loic Bade, Lucas Vasquez and Arthur feature amongst the roster of potential absentees.

Ben Seghir and Flekken have been sidelined for the previous 15 fixtures following ankle and ligament injuries, respectively.

A hamstring problem will restrict Bade's participation whilst Vasquez has been troubled by a calf injury. Arthur has been absent from the last four matches following his substitution during the second period against Mainz with a ligament tear.

Martin Terrier was withdrawn against Bayern Munich following the dreadful challenge from Jackson and confronts a battle to be available for the journey to Arsenal.