ALEXIS SANCHEZ could not stop laughing after watching Arsenal team-mate Alexandre Lacazette's unbelievable miss against Chelsea.
The France striker somehow managed to blast over from just five yards out after Aaron Ramsey's first-half shot hit the post.
And the Sky Sports cameras panned to the Gunners bench to show the Chile frontman in hysterics.
Sanchez hugged a disconsolate David Ospina, who looked equally in disbelief at Lacazette's howler.
Some Gunners fans were fuming at Sanchez - who was on the brink of joining Manchester City in the summer - for his reaction.
One wrote: "Alexis Sanchez laughing at Lacazette missing... Get this man out of Arsenal."
Another said: "Alexis Sanchez stop laughing when we don't score you f*****g c***."
A fellow Twitter user posted: "Nice to see @Alexis_Sanchez laughing at @LacazetteAlex missing - hurry up and leave please."
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One said: "Not sure why @Alexis_Sanchez is laughing at @LacazetteAlex miss. I'll take someone who wants to play at club over someone [who] doesn't #Arsenal."
Another posted: "I am glad @Alexis_Sanchez isn't playing. I would send him to hell. Laughing after missing a chance. He doesn't give a s**t about the club."
Sanchez went on to replace Lacazette in the 66th minute and patted his team-mate on the back as he took to the pitch.
It was back in March that Sanchez appeared to laugh during Arsenal's 10-2 drubbing by Bayern Munich.