Such is the impact Alexis Sanchez has in north London, you would expect every pundit to immediately sing the Chileans's name when asked who was missing for the Gunners at the Emirates Stadium.
Indeed, the BBC pundit said on Match of the Day: "You’ve got [Santi] Cazorla who wants to play central. You have [Aaron] Ramsey who wants to play central.
"[Alex] Oxlade-Chamberlain is the only natural wide player but he didn’t have Bellerin today. He was a big miss. Because Debuchy just wasn’t at it."
Debuchy, of course, struggled in terms of fitness, as the Frenchman has only recently become available again after injury.
But Arsenal were certainly far too narrow, with Murphy and fellow MOTD pundit Jermaine Jenas highlighting a number of segments where West Ham's defence were simply not stretched at all.
It's just phenomenal how important Bellerin has become at 20 and, the more he plays, the more the full-back will continue to develop. He has the pace, he can attack and, if Debuchy isn't careful, he'll be under serious threat from the youngster even when fully fit.