Arsenal beat Stoke City 3-0. Alexander Lacazette came into the pitch in the second half and scored from penalty to seal the victory.
There was a question why Pierre-Emerick Aubameyang did not take the penalty so that he could have had his first hat-trick in the club.
"I knew this was his first game after injury and I had already scored twice, so I knew it could help his confidence" Aubameyang said.
Lacazette was out for a month and contributed his 8th Premier League goal this season.