Petr Cech earned himself a special place in the Premier League record books after equalling the all-time record for the most clean sheets recorded in the English top-flight.
The Czech Republic international was in imperious form against Manchester United, repelling Anthony Martial and the Red Devils attack on frequent occasions during the Gunners' 3-0 win.
In the process, Cech picked up his fourth clean sheet of the season for Arsenal in the Premier League and his 170th in total, having accumulated 166 during his time with Chelsea.
That total brought him level with the previous sole record holder for the highest number of clean sheets, David James, with the former England international picking up his haul during spells with Liverpool, Aston Villa, West Ham, Manchester City and Portsmouth.
But what makes Cech's achievement all the more remarkable is that he managed it in considerably fewer games, with the total of 170 clean sheets racked up in 340 appearances.
That works out as an average of exactly 0.5 per game (one in every two matches), compared with James who managed it in 572 games at an average of 0.3 per game (just under one in every three matches).
With the majority of the season to come, Cech now looks almost certain to break James' record and it could be one he holds on to for some time with nearest realistic challenger, Tim Howard, currently on 128 career clean sheets in the Premier League.