Ange Postecoglou's decision not to have a set-piece coach come back to haunt him in the north London derby.
Arsenal went 1-0 up in the second half through Gabriel, with the defender heading in from the area. Bukayo SakaThe corner of.
Sunday's goal must have seemed like déjà vu to everyone.
That's because two of Arsenal's goals in their last game at Tottenham Hotspur Stadium came from corners, as they beat their rivals 3-2.
After their last few games, three of Arsenal's last four Premier League goals against rivals Tottenham have come from corner kicks.
Only three of his previous 88 league goals in north London derbies had come from corners before this one.
Despite failing to keep corner specialists Arsenal at bay last time out, Postecoglou insisted he was not put off by his side's set-piece problems, citing Billy Joel.
“I'm not interested,” he said in May. “I've never been interested. Not in the slightest.”
“This is not the first time I have been questioned about set pieces in my coaching career.
“There's an underlying reason for it that I'm very, very comfortable with.
“To quote Billy Joel, you may be right, I may be crazy, but maybe it's a lunatic you're looking for.”
He added: “Over time I will create a team that will be successful and it will not be by working on set pieces.”
He also doesn't want a coach who plays set pieces.
But fast forward to September, and talkSPORT's on-field reporter Dean Ashton believes Spurs need to do something about their set-piece problem.
The former England striker said: “He is Tottenham's weak point, all teams have Vicario in their sights.
“From inside the penalty area, Gabriel is one of the best. Vicario cannot react because he is stuck to his line.”
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