Thibaut Courtois is some goalkeeper, we know that. But this save was next level.
The Blues were rocking after missing a chance at one end and seeing Arsenal come back up the other end and have a good shout for a penalty denied.
Alexis Sanchez took his chance for a snapshot on the edge of the area, which took a deflection, but somehow the big Belgian got down to tip the ball onto (both) posts.
See the save in the video below:
Unbelievable chance, Mesut Ozil & Alexis work it into the box, Alexis shoots & it hits both posts & into Courtois pic.twitter.com/NRlym6gq5q
— ArsenalUpdates (@ArsenalEdits___) January 3, 2018