'He gave me a headache' - Premier League rivals will fear exciting Ruben Amorim at Manchester United

Manchester United released images of Ruben Amorim's first training session at Carrington earlier this week. The players were smiling and looked to be in tremendous spirits, but David Rosa remembers his first few sessions working with Amorim at Casa Pia slightly differently.

"I remember that he was the first coach I ever met who left me with a headache at the end of the first week of training, such was the amount of information I had to process," said Rosa.

United believe they have appointed one of the world's finest coaches and Rosa regards Amorim as the best that he encountered during his career, even if he did give him a headache.

Amorim will have to be every bit as good as his reputation. The 39-year-old has inherited a United side that struggles to score goals and currently sits 13th in the Premier League, but he took over at Sporting Lisbon in similar circumstances and led them to their first league title for 19 years.

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Amorim's rise in Portugal was remarkable and it started at Casa Pia, a small and modest club in Lisbon that is dwarfed by its inner-city neighbours Sporting and Benfica. Amorim had only just retired from playing and lived nearby, so he approached the then-third division side in 2018.

Casa Pia play at a stadium with a capacity of just over 2,500 and were an amateur team. Amorim lost his first two games in charge and said he would quit if he suffered a third defeat.

Amorim won that game, changed the team's formation and began a special journey. Rosa's arrival at Casa Pia coincided with Amorim's and he still has fond memories of that time.

Rosa recently spoke