MILTON KEYNES, ENGLAND - SEPTEMBER 26: Toby Alderweireld of Tottenham Hotspur plays the ball during the Carabao Cup Third Round match between Tottenham Hotspur and Watford at Stadium mk on September 26, 2018 in Milton Keynes, England. (Photo by Pete Norton/Getty Images)

Former Tottenham manager Tim Sherwood has questioned his successor Mauricio Pochettino’s decisions in light of their 4-2 derby defeat to Arsenal

The Argentine made the shock decision to start Juan Foyth instead of Toby Alderweireld on Sunday at the Emirates Stadium.

The 20-year-old Foyth notably lost possession of the ball within his own half in the build-up to Alexandre Lacazette’s goal – which handed Arsenal a 3-2 lead.

Pochettino later defended Foyth and insisted that his fellow Argentine was one of the best players out there.

But, for Sherwood, Alderweireld’s absence from the derby was a mistake and he also expects the Belgian to leave by next year.

“Hindsight makes it easy to be a football manager when you look at decisions made,” Sherwood told Sky Sports’ The Debate.

“I was surprised when I saw Alderweireld wasn’t in the starting line-up with Vertonghen.

“I know that they’re looking to the future because Alderweireld almost certainly will not be at the football club next year.

“The young Argentinian boy Foyth has come into the side, struggled a bit and made a few mistakes at Wolves.

“He made a mistake in the derby at the beginning of last week against Chelsea when he should have given a penalty but he got away with that. Then he made a mistake at the weekend.

“Now I understand Mauricio wants to see if he can play in the big games, give him the confidence and try to stick with him and there comes a time when you’re playing in that position, which is a very responsible position on the field, when you make a mistake you invariably get punished at the top level. He’s made too many and maybe the boy needs to come out.

“It was a massive game, it’s a north London derby and arguably the best centre-half partnership in the country is Alderweireld and (Jan) Vertonghen.

“But it’s easy sitting here after the event. Mauricio makes a lot of decisions for that football club and you have to say 99 per cent of them have been correct up to now.”