Roberto Pereyra had the final say in the game when he scored from the penalty spot nine minutes before the end. And it was Watford who came closest to winning the contest too through Abdoulaye Doucoure.
“If you are an Arsenal supporter watching that you must be scratching your head,” said Souness. “It was as if this is the first team in the first half and then the second team in the second half, they capitulated.
“Proper teams don’t play like that. Proper teams don’t have a half like that in the first and then play like that in the second half. Proper teams just don’t do that.
“They bring on some kids – we were questioning them bringing on kids. That was a game that at 2-1 it was time to dig in and regroup and make sure they weren’t going to lose the game and they should have lost the game in the second half.
“When the kids came on they were all over the place, it was like a game of basketball, and I think if you’re an Arsenal supporter that must deeply worry you.”