Flick downplays Yamal's reaction to late substitution in Barcelona win

• Barcelona defeated Eintracht Frankfurt 2-1 in a Champions League match.
• Coach Hansi Flick downplayed Lamine Yamal's reaction to being substituted late in the game.
• Yamal was replaced due to a yellow card and will miss Barcelona's next Champions League match.
• Jules Koundé scored two goals, with one assisted by Yamal, securing Barcelona's comeback victory.
• Lamine Yamal set a new Champions League record for goal involvements (14) by a player under 19.

Why It Matters: Flick's handling of Lamine Yamal's frustration reveals team management dynamics.