The Gunners consolidated their place at the top of the Premier League table after defeating Newcastle United 1-0 at the Emirates, Laurent Koscielny netting the only goal of the game.
Leicester City’s draw with Bournemouth means Arsenal move two points clear at the top, though former striker Alan Shearer has doubts about whether they can last the pace without new additions.
Speaking on BBC Radio Five Live, the popular pundit believes the club will do well to steer clear of more injuries and thinks they need to make three new signings to compensate for key absences.
"Arsenal are in a strong position in the Premier League and also through to the last 16 of the Champions League again. But they always seem to get injuries - already this season is no exception - so they need to strengthen their squad for the second half of the season," Shearer explained.
"Another centre-forward, a defensive midfielder and a centre-half should all be on Arsene Wenger's list but the difficult thing for Wenger is to find a way of doing that in the middle of the season to improve his team."
The Gunners are already missing seven players though injury, including the likes of regular first-team stars Alexis Sanchez, Santi Cazorla, Francis Coquelin and Jack Wilshere.
A further injury to the likes of Mesut Ozil, Olivier Giroud or Koscielny would undoubtedly place them in a spot of bother and they can’t afford to let this huge opportunity pass.
With so many of the so-called big teams faltering, Arsenal may not get a better chance to win the Premier League title and refusing to strengthen and later missing out could be among their greatest ever regrets.