Arsenal boss Arsene Wenger insists Arsenal deserved three points against Burnley
Shkodran Mustafi gave Arsenal the lead with his first goal for the club, but the Gunners went down to 10 men after Granit Xhaka saw red.
Burnley thought they had earned a point after Andre Gray fired home from the spot after Francis Coquelin's foul, but a 98th minute Sanchez penalty sealed a 2-1 win for Arsenal.
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Sun, January 22, 2017
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Burnley are well organised, they make the game simple but efficient
Arsenal boss Arsene Wenger
And Wenger admits it was a difficult encounter.
"We finally got the win but of course it was very difficult for us," Wenger told BBC Sport.
"We couldn't get the second goal, we played with 10 men and they played well as well. In the end we got the three points we wanted.
Alexis Sanchez struck in the 98th minute to seal victory for Arsenal
"Burnley are well organised, they make the game simple but efficient.
"We won there in the last second and we one again in the last second today.
"Every week and every game is an unbelievable fight for everybody."