The Belgium international gave the visitors a second-half lead at Emirates Stadium when he finished from close range.
But the Gunners fought back through Alex Oxlade-Chamberlain to earn a point from an entertaining north London derby.
And Chadli was satisfied with the performance Mauricio Pochettino’s men put in against their local rivals.
He posted the picture above on Instagram and wrote: “Good team performance today. Great team spirit.
“Had preferred 3 points but we’ll have to Wait fr the return. Happy for my goal. God bless us all #coys.”
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news