Arsenal had to show their resiliency against QPR on Boxing Day, and they proved it once again with a win against West Ham United.
After a strong start from the hosts, Arsenal took the lead with Santi Cazorla converting from the penalty spot after being tripped up by Winston Reid.
Just three minutes later, Danny Welbeck converted from close range to give Arsenal a 2-0 lead at half-time, which may have been slightly flattering.
Cheikhou Kouyate gave West Ham hope with a second half header, but Arsenal stood strong defensively - and a large reason for that was the return of Laurent Koscielny.
The French centre back has been out for the majority of the season, but made his return this afternoon - and was superb in the Arsenal back four.
Fans were delighted to see the former Lorient star make his comeback, taking to Twitter to praise the man they know as 'Bosscielny'.
Koscielny is arguably our most important player, he makes us look so much more solid from back to front, the guy breeds confidence #AFC— Matthew Phillips (@MatthewPhill87) December 28, 2014
Koscielny is such a top CB, makes our defence a lot more solid. #afc— thomas (@T_Clayton_AFC) December 28, 2014
The difference when we play Koscielny or not is unreal. Best CB out there, hope we can pair him with a younger CB soon #AFC— Bas Rinkens (@Rinkens) December 28, 2014
Having Debuchy and Bosscielny in defense makes me feel very comfortable! they're world class— Anas Espil (@AnasEspil) December 28, 2014
Bosscielny makes the rest of our defense look like professionals.— Hassan (@Hassanchez_) December 28, 2014
Koscielny was unreal today imagine thinking he isn't top3 in the world when fit only Godin/Pepe rival him imo.— Cräig (@HlebAssist) December 28, 2014
If you could guarantee Koscielny could play every game until end of season we'd finish 3rd with our eyes closed everyone else is that bad.— Ryan Harden (@bry5913) December 28, 2014