Mauricio Pochettino heads to Old Trafford with a reputation for "brutal" pre-seasons, an obsession with fitness and a no-nonsense approach.
Manchester United confirmed on Friday that Pochettino will become their manager on 18 November - replacing Michael Carrick - and has signed a contract until June 2029.
So what should the players and staff expect when the Argentine takes control at the end of next week?
BBC Sport spoke to Toby Alderweireld, who spent four years playing for Pochettino at Tottenham during a successful period where they reached the Champions League final and finished second in the Premier League.
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Alderweireld, 37, says Pochettino has a no-nonsense approach to management and that he can get the best out of a squad, as long as you do it his way.
"He is very approachable but you need to follow his plan. If you don't follow his plan, you go on the side and you're not coming back any more.
"You need to think about team, team, team. If you're thinking about yourself, you're gone.
"As a player you have your own life, your own situation but he says 'look, I understand and you can talk to me about it…
