The Colombian forward is heading to Italian champions Juventus on loan.
Atalanta coach Gian Piero Gasperini admitted his side struggled against Udinese.
Barcelona made a disappointing start to their Champions League campaign by losing 2-1 to AS Monaco on Thursday.
Real Madrid's Rodrygo struck twice and Jude Bellingham was also on target as the visitors enjoyed a 3-0 win at lowly Cadiz.
Sadio Mane scored twice to help Senegal fight back and shock Brazil 4-2 in a friendly in Lisbon on Tuesday.
The league, which is now conducting tests twice per week, did not name the people who tested positive but said they will self-isolate for 10 days.
Goals from Paulo Dybala and Juan Cuadrado sent Juventus back to the top of the Serie A table with a comfortable 2-0 win over 10-man Brescia on Sunday.
Neymar conjured up a superb equaliser and a dreadful penalty miss in a pulsating 1-1 draw between 2014 World Cup hosts Brazil and Colombia in their friendly.
In a big blow to Real Madrid's title hopes, Real Betis held them to a goalless draw in their La Liga encounter on Sunday.
Barcelona winger Raphinha secured a 1-0 win in LaLiga for the second straight week this time at Athletic Bilbao as his side tightened their grip on top spot.
Images from the Serie A and La Liga matches played on Saturday.
The club said in a statement that they will observe a period of self-isolation in accordance with league and UK Government protocols on quarantine.
Colombia reached the quarter-finals of the World Cup for the first time after a double from James Rodriguez gave them a 2-0 win over Uruguay in Rio de Janeiro on Saturday.
Jackson Martinez scored twice as Colombia beat Japan 4-1 to top World Cup Group C with maximum points on Tuesday. The victory earned them a second-round meeting with Uruguay in Rio de Janeiro and ended Japan's interest in the tournament.
Chelsea manager Antonio Conte indicated that striker Diego Costa will stay at the club, despite a series of reports in the Spanish media linking him with a return to Atletico Madrid.
Juventus' wretched start to the season continued when they needed a late penalty to avoid defeat as the Serie A champions were held to a 1-1 home draw by early leaders Chievo Verona on Saturday.
Germany forward Mario Gomez, scorer of only one Serie A goal this season, struck twice in the first half hour to help Fiorentina beat Atalanta 3-1 in the Italian Cup on Wednesday.
A spectacular piledriver from Juan Cuadrado gave Serie A leaders Juventus a 1-0 win over Inter Milan, ending a run of seven successive Serie A wins for their opponents in a pulsating end-to-end match on Sunday.
Cristiano Ronaldo scored two goals as Real Madrid thrashed Juventus 4-1 in the final to win the UEFA Champions title, in Cardiff, on Saturday.
Second-placed Sevilla were held to a 1-1 draw by Barcelona, while Juventus registered a routine 2-0 win over struggling Cagliari.
Juventus have 13 points from seven games, three behind leaders AC Milan who host Verona later on Sunday. Lazio have 11 points.
Colombia's James Rodriquez is once again looking to showcase his skills at the showpiece event and remind the world of his talent.
Allowing a lead to twice slip from their grasp in their last World Cup game could come back to haunt Senegal when they face Colombia in a decisive Group H clash in Samara on Thursday.
Captain Casemiro said Brazil fully deserved the three points.
Champions Juventus lost for the third time in six Serie A matches this season after goals from Lorenzo Insigne and Gonzalo Higuain secured a 2-1 home win for Napoli on Saturday.
Colombia head to Copa semis after penalties win over Uruguay
Juventus coach Massimiliano Allegri complained about his team's finishing after the Serie A leaders were held to a goalless draw at Fiorentina.
Leaders Juventus were denied a 16th successive Serie A win when they were held 0-0 at Bologna in a game marred when an object, possibly a firecracker, was hurled at their team bus as they arrived.
Holders Juventus swept aside old rivals Inter Milan 3-0 with some flowing attacking football and a brace from Alvaro Morata in the first leg of their Coppa Italia semi-final.
On a seismic day in the history of Chelsea, Romelu Lukaku scored the winning goal in a 3-2 FA Cup fifth-round victory
Cristiano Ronaldo's goal, which took his league tally for the season to 21, meant that he joined Fabio Quagliarella and Gabriel Batistuta as the only players to have scored in 11 consecutive league appearances. He also reached yet another milestone with his 1,000th match for club and country in a remarkable career which has seen him play for Sporting, Manchester United, Real Madrid and Portugal.
Japan beat 10-man Colombia 2-1 in Group H on Tuesday to become the first Asian side to beat a South American one at the World Cup.
A first-half goal from Jeison Murillo gave Colombia a 1-0 win over Brazil at the Copa America.
A round-up of Wednesday's action in the UEFA Champions League.
IMAGES from soccer matches played across Europe on Saturday.
IMAGES from football matches played across Europe on Sunday.
Neymar, who has scored twice so far to help Brazil into the World Cup quarter-finals in Russia where they will face Belgium on Friday, has been sharply criticised for a string of exaggerated reactions when clashing with an opponent.
Colombia have been a mixed bag at the tournament.
Carlos Bacca's first-half goal was enough to give Colombia a 1-0 victory over the United States in the third-place playoff at the Centenary Copa America in Arizona on Saturday.
Colombia have scored more goals than Argentina and notched as many as the highly-rated Brazilians