Aaron Ramsdale produced a fantastic save to deny Crystal Palace an early lead during their encounter today .
The Gunners thrashed Palace 4-1 with goals coming from Martinelli, Saka and Xhaka.
Palace had chances early on in the first half and could have punished Arsenal.
Watch: Gabriel Martinelli scores his 13th league goal from an extremely tight angle to give Arsenal the lead
Nonetheless the Gunners are 8 points clear of Manchester City following the win.