He made his Serie A debut on 1 November, replacing Davide Calabria in the 71st-minute of a 2–1 away win against Udinese.
He made his first start in the league in a 2–2 away draw against Genoa.
On 7 March 2021, Dalot scored his first Serie A goal in a 2–0 away win at Hellas Verona.
During the season, Dalot's versatility enabled him to play either as a right back and left back.
1999
José Diogo Dalot Teixeira (born 18 March 1999) is a Portuguese professional footballer who plays as a full-back for club Manchester United and the Portugal national team.
2008
Born in Braga, Dalot joined Porto's youth system in 2008, aged nine.
2016
He was a member of the under-17 squad that won the 2016 UEFA European Under-17 Championship.
During that season, he had a memorable match in Paris, in the Champions League round of 16 2nd leg against Paris Saint-Germain, where Manchester United completed a remarkable comeback due to a late penalty, won after a shot by Dalot.
He scored the second goal in a 6–0 FA Cup win against Tranmere Rovers; it was his first goal for United.
During his first seasons for the club, Dalot struggled with various injuries and following the arrival of Aaron Wan-Bissaka, his performances were severely limited under manager Ole Gunnar Solskjaer.
2017
Dalot is a product of the Porto youth system and made his professional debut for the club's B team in January 2017.
He made his first-team debut in a Taça de Portugal game in October 2017.
On 28 January 2017, he made his senior debut with the B team, playing the full 90 minutes in a 2–1 home loss against Leixões for the LigaPro championship.
Dalot first appeared with the first-team in a competitive game on 13 October 2017, starting in a 6–0 away win over Lusitano de Évora for the season's Taça de Portugal.
2018
After making eight appearances for Porto, he joined Manchester United in June 2018 for a reported fee of €22 million (£19 million).
He first played in the Primeira Liga on 18 February 2018, coming on as a 75th-minute substitute in a 5–0 home routing of Rio Ave.
Dalot signed for Premier League club Manchester United on 6 June 2018 on a five-year contract for a fee of £19 million.
Upon his arrival in Manchester, coach José Mourinho said that, considering his young age, he was one of the best right-backs around.
He made his debut on 19 September 2018 in an away UEFA Champions League group stage match against Swiss side Young Boys, but was unable to have continuity in the team due to an injury sustained in the previous season.
He made his Premier League debut on 1 December in a 2–2 away draw against Southampton.
Despite Mourinho's sacking and Ole Gunnar Solskjaer being appointed as the new manager, Dalot remained a valuable option: at the end of the season, he made 23 appearances.
2020
From October 2020 to June 2021, Dalot was loaned to Italian Serie A club Milan.
Dalot was a youth international and represented Portugal from under-15 to under-21 level.
He made his senior international debut for Portugal at UEFA Euro 2020.
Following sporadic use by Manchester United, Dalot was loaned to Italian Serie A side Milan for the 2020–21 season.
He made his debut for Milan on 22 October, starting in a 3–1 win against Celtic in a UEFA Europa League group stage match.
Seven days later, Dalot scored his first goal for Milan and provided an assist for compatriot Rafael Leão in a 3–0 home group stage victory in the UEFA Europa League against Sparta Prague.
This made him an integral part of Stefano Pioli's team, helping Milan secure second place in the 2020–21 Serie A and qualification for the 2021–22 UEFA Champions League after an eight-year absence.
During his spell as a Rossonero, he was able to play regularly, making 33 appearances, scoring two goals and providing three assists.
As often said by Dalot himself, in Italy he was able to improve defensively, without losing his ability to attack.
During the summer of 2021, Manchester United were interested in signing another right-back.
Meanwhile, Milan, who were impressed with Dalot during his loan move with the club, began negotiations with Manchester United to sign him on permanent basis.
After returning to Manchester United, he impressed coach Ole Gunnar Solskjaer with his performances during pre-season.
Borussia Dortmund were also interested in signing him on a loan deal, but he decided to remain at United to compete with Aaron Wan-Bissaka for a starting position.
On 22 September, Dalot was given his first start of the season, featuring in a 1–0 home loss to West Ham United in the third round of the EFL Cup.
Since then, he has had limited opportunities with two starts and three substitute appearances.
He played against Villarreal in a Champions League group stage match after Wan-Bissaka was suspended for two games.
On 2 December, Dalot was given his first start in the league under interim manager Michael Carrick, putting an impressive performance and creating the second goal in a 3–2 home win over United's rivals Arsenal at Old Trafford.
Following the arrival of interim manager Ralf Rangnick, Dalot cemented his place as starter for the club, following his solid performances in the club's next two matches against Crystal Palace and Norwich City.
However, his form alongside his team declined during the season, with United finishing a disappointing sixth place and qualifying for the UEFA Europa League.
