Arsenal manager Mikel Arteta wants his players to remain calm in their upcoming games.
The Gunners face a key Europa League round of 16 first leg against Olympiacos on Thursday.
The Europa League is likely their last chance to qualify for next season's Champions League.
Since 2017, Arsenal have conceded the most penalties and been shown the most red-cards in the Premier League, and Arteta wants the trend to stop.
"It's very difficult because a lot is expected in the situation of a football match, but then emotionally we have to be much more calm and much more secure," Arteta told reporters in his pre-match press conference.
"We have to manage the games much better in certain situations and that comes with maturity and that comes from learning, so every time you do that hopefully you learn and it doesn't happen again to the same player, but then something happens to a different one.
"The positive thing is that I think it's in our control and it's not something that the opponents are doing and we can't control it. I think it's easier to fix but we have to fix it very quickly because if not the margins are so small and you're close to losing points all the time."
