Arsenal boss Mikel Arteta praised Kai Havertz and William Saliba after defeat at Newcastle.
Havertz produced his best performance in an Arsenal shirt on the night as Newcastle won via Anthony Gordon's controversial goal.
Arteta said, "So much. It's incredible the way these guys play with 20-years, 21-years-old, the way they play here, the way they compete against this team because they are a top team. Incredible.
"So to get a game out of that like this, I feel sick. That's how I feel. I feel sick to be part of this."
He also said: "I have to praise them, it's not in their hands it's not in their control. I have to praise the players the way they play here, and what they did and how much they limited Newcastle to what they did and how much we tried. It's incredible. Honestly."