Arsenal attacker Bukayo Saka was delighted scoring from the spot in victory at Brighton.
The 3-0 win sees Arsenal return to the top of the table.
Saka said: "Last season was not great to think about.
"But, great in terms that we have learned out lesson. In games like this game we needed to put it to bed.
"Last season we were conceding late goals and having to defend - then the fans were on top of us.
"This year we are more comfortable and I think the team is better. I feel like we are ready for each game to win."
