The statement added that both players and the staff member were in good health and said the team had followed protocol and taken the appropriate measures following the results.
The 22-year-old has signed on an eight-and-a-half-year contract in deal worth 100 million euros ($108 million).
IMAGES from the UEFA Champions League quarter-final played between Atletico Madrid and Leipzig on Thursday.
A summary of Saturday's action in the Serie A, Ligue 1 and Bundesliga
United were unable to create enough quality opportunities to get themselves the goal they needed.
FIFA WC PIX: Ghana vs Portugal
Atletico Madrid have recorded five COVID-19 positives, including manager Diego Simeone
Portugal coach Fernando Santos took the brave call to bench Cristiano Ronaldo and was rewarded with an artful display from his side as they set up a last-eight clash with Morocco
Ivan Toney, once Brentford's lynchpin in attack, has moved to Al-Ahli for 40 million pounds ($52.50 million).
Diego Costa scored four goals as Real Madrid were embarrassed 7-3 by rivals Atletico Madrid in the final match of their United States tour, in New Jersey, on Friday
Cristiano Ronaldo continued his record-breaking form for Portugal as he grabbed two more goals in his country's 6-0 thrashing of Luxembourg in a Euro 2024 qualifier on Sunday.
Marcus Rashford and Joshua Zirkzee bagged two goals apiece as Manchester United thumped Everton 4-0 on Sunday in new manager Ruben Amorim's first Premier League match at Old Trafford.
English Premier League side Chelsea completed the signing of Argentina midfielder Enzo Fernandez from Benfica for a British record 106.8 million pounds ($131.46 million).
Borussia Dortmund snatched a 1-0 victory over Chelsea in the Champions League round of 16 first leg on Wednesday
Ramos could not have hoped for a more magical night in Qatar, having made his international debut only three days before the World Cup started.
Images from the FIFA World Cup Group H match between Portugal and Uruguay on Monday.
Juventus forward Cristiano Ronaldo and Barcelona's Lionel Messi, who have won the award 10 times between them, are included
Diogo Jota and Joao Felix both scored their first international goals in the second half before Bruno Petkovic pulled one back and Andre Silva then added a fourth.
Cristiano Ronaldo struck a late winner as Portugal came from a goal down to beat Scotland 2-1.
A summary of the opening day's action in the UEFA Champions league on Tuesday.
Morocco will no doubt revel in another opportunity to thrive as underdogs
Images from Tuesday's action in the Premier League
Portugal play surprise package Morocco in the quarter-finals on Saturday and a visibly frustrated Santos took great pains to explain what happened behind the scenes to put the issue to bed.
Thorgan Hazard's first-half goal enabled Belgium score a 1-0 victory over defending champions Portugal in Euro 2020 last 16 match at Estadio La Cartuja in Seville, Spain, on Sunday. The victory set up a quarter-final against Italy.
Coach Santos said after the Morocco loss that he does not regret leaving Ronaldo on the bench and repeatedly explained that his decisions were tactical, raising questions about whether Ronaldo's brilliant career is nearing a bitter end.
Portugal could qualify early for the next phase of the World Cup with a game remaining if they beat Uruguay on Monday, a task probably much easier said than done.
Juventus climb to top of Serie A with win over Lecce
IMAGES from the English Premier League matches played on Wednesday.
Sweden missed out on the finals for the first time in 28 years on a night in which their fixture with Belgium was abandoned
News of all that's transpired on and off the football field.
Arsenal survived a massive scare as they registered a thrilling Premier League win over Bournemouth to remain on top of the table.
Spanish soccer clubs have no option but to face up to reducing players' salaries next season due to the financial impact of the coronavirus pandemic, La Liga president Javier Tebas said. The Spanish season has been on hold since March and although matches are due to re-start in June without spectators, the league still estimates clubs will lose a combined 300 million euros ($326.07 million) in lost revenue due to the disruption.
IMAGES from the FIFA World Cup Round of 16 match played between Portugal and Switzerland on Tuesday.
Chelsea reached the Champions League quarter-finals as a first-half goal from Raheem Sterling and a controversial penalty by Kai Havertz overturned a first-leg deficit.
Images from matches played across top football leagues in Europe.
Manchester United will be back in action in next season's Champions League after they hammered Chelsea 4-1.
Paris St Germain extended their Ligue 1 lead to 13 points with a 4-3 home victory against Girondins de Bordeaux on Sunday but the French champions were again exposed at the back and had Neymar sent off. A Marquinhos double, Edinson Cavani's 200th PSG goal and a goal by Kylian Mbappe put the capital side on 65 points from 26 games but they lost captain Thiago Silva to a muscle injury and Neymar picked up a straight red card for a late challenge in stoppage time.
Neto will sign a four-year deal with Barcelona that will keep him at the club until the end of the 2022-23 season and he will replace Dutch goalkeeper Jasper Cillessen who moved the other way on Wednesday.
Booted out by his beloved Manchester United, suspended by the Football Association and deemed over the hill by many, Cristiano Ronaldo answered everything in the best possible fashion with another record-breaking display on Thursday.