Merson pointed out that the Arsenal players were nervous during the first leg, as it was their first time in the semi-finals of the Champions League. He noted that it's natural to feel nervous, regardless of how much money you earn. Merson attributed Arsenal's nervousness to their inexperience in such high-stakes matches.

He also mentioned that PSG's early goal in the first leg put pressure on Arsenal, causing them to be overly cautious. Merson thinks that if PSG scores first in the second leg, they will likely sit back and defend, making it difficult for Arsenal to come back.

Merson was critical of Arsenal's performance in the first leg and suggested that they may not have deserved to reach this stage of the competition due to their lack of experience. However, he acknowledged that Arsenal have a chance to turn things around if they can score first in the second leg.

Merson pointed out that if Arsenal score first, it would level the tie and give them a chance to win. On the other hand, if PSG scores first, Merson believes it would be difficult for Arsenal to come back. He also noted that the return of Thomas Partey gives Arsenal a glimmer of hope, but he still doesn't give them a high chance of progressing.