While a number of Arteta's biggest players were criticised for not delivering in what was their biggest game of the season, once again it was Arsenal's young talent which impressed.
Emile Smith Rowe, in particular, had a good night while Bukayo Saka has enjoyed a fine season which recently saw him named Young Player of the Year at the London Football Awards.
“It gives me a lot of confidence because they have shown what they can do," Arteta said of his precocious youngsters.
“It's true that playing in a semi-final at this level is a different story, but as well they need the right surroundings around them to grow, without putting too much pressure on them.
“It doesn't matter how old you are, it has to be in your system and part of you that you want to be able to take the ball anywhere, under any conditions and any kind of pressure."