Newcastle boss Alan Pardew claimed his side simply ran out of steam as they were battered 7-3 by Arsenal in a thrilling clash at the Emirates Stadium.
Theo Walcott grabbed a hat-trick as Arsenal beat Newcastle in a 10-goal epic that sent them to fifth in the Premier League.
Arsenal led three times through goals from Walcott, Alex Oxlade-Chamberlain and Lukas Podolski, but were pegged back on each occasion by Demba Ba (2) and Sylvain Marveaux.
But Walcott completed his hat-trick and substitute Olivier Giroud got a quickfire double to seal the win.
"I thought when we got back to 3-3 we should have shut up shop," the Newcastle boss said.
"The last 15-20 minutes was a fresh team against a tired team and perhaps a bit of inexperience on our bench resulted in the scoreline.
"We're just so disappointed that we didn't get something out of it before then.
"The goals we conceded before then were not, not good and that's been our problem.