Arsenal manager Arsene Wenger believes last Saturday's 5-0 win at home against Lincoln City was the perfect way to forget the Champions League exit at the hands of Bayern Munich.
The Gunners reached the semi-finals of the competition after an easy home win against Danny Cowley's men.
They face West Bromwich Albion away from home this weekend as they resume their Premier League campaign.
"I felt we played in the first half with the desire not to make a mistake," Wenger told Arsenal Player.
"We knew they would give us a rough game and we were really highly focused to be well-concentrated defensively and our fluidity suffered a little bit from that.
"But after we scored the first goal I felt we wanted to heighten the tempo in the second half. You could see they worked very hard to stop us from playing in the first half and they certainly paid for that in the second half.
"We were punished very hard on Tuesday night, after what I think was a good performance as long as we were 11 against 11. We were really frustrated after the game and it's good to get that out of the system."