Barcelona won their 27th LaLiga title and first for four years after a 4-2 win at city rivals Espanyol on Sunday.
He is scheduled to testify on Friday.
Ronaldinho has not played a competitive match since 2015 but had avoided calling a definitive halt to his career until now.
IMAGES from the English Premier League matches played on Wednesday.
England's Liverpool FC and Spanish champions Real Madrid will face off in the final in Paris.
Man Utd sign Mount from Chelsea on five-year deal
The first legs of the ties will take place on February 16, with the return match a week later on February 23.
Canada beat USA to enter quarters, Argentina overpower Chile in opening tie
Cristiano Ronaldo says he decided to quit Real Madrid this summer because the Spanish club's president, Florentino Perez, only ever saw him as a means of making money.
Forget Italy's image of Catenaccio (or "door chain defence"). Antonio Conte's Italy showed in a 2-0 defeat of Spain at Euro 2016 on Monday that they can do unchained attacking football too. The Azzurri, who will take on world champions Germany in a fascinating quarter-final on Saturday, had promised they would not be afraid to go forward against Spain.
News of all that's transpired on and off the football field
Real Madrid's Gareth Bale and Arsenal midfielder Aaron Ramsey will miss Wales' friendly at home to the Netherlands on November 13, manager Chris Coleman said on Wednesday.
Brazilian prosecutors filed a formal complaint against Neymar and his father on Tuesday for tax evasion and providing false information.
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.
When asked about Barcelona's youth and talent in midfield especially, Gundogan said he had a lot to offer the team with his experience.
A frustrated Lionel Messi said he is tired of being blamed for problems at Barcelona after he was accused by Antoine Griezmann's former agent of making life difficult for the French striker at the La Liga club.
Portugal defender Pepe is in the last year of his contract with Real Madrid but is keen to prove doubters wrong by signing a new deal with the Spanish club.
If you thought you had seen the high points in the trailer, the entire film is simply fire, applauds Joginder Tuteja.
Sofiane Feghouli's late goal eased the nerves at Valencia's Mestalla as the Spanish club grabbed a 3-1 victory over Monaco in the first leg of their Champions league play-off round tie on Wednesday.
Koopmeiners leads Atalanta past Milan into Coppa semis
Cristiano Ronaldo said he regretted taking the attention away from Real Madrid's third consecutive Champions League crown after hinting the 3-1 final victory over Liverpool was his last game but reiterated that he is not happy with the club.
Argentina have called up Mallorca's Spanish defender Pablo Maffeo for the first time ahead of this month's World Cup qualifiers against Uruguay and Brazil in the squad announced by its FA on Friday.
Chelsea lost their opening Premier League game with Lampard in charge 4-0 to Manchester United on Sunday and face Liverpool in the UEFA Super Cup on Wednesday.
Nagelsmann said Lewandowski was still at a top level despite his 34 years and expected him to keep scoring an average of 40 goals a season. The striker has six LaLiga goals in five matches for Barca so far this season.
Real Madrid president Florentino Perez has tested positive for COVID-19, the Spanish champions said on Tuesday.
The players of the first staff of football of the FC Barcelona made the medical examinations on Wednesday and according to the information, all have been given negative and are 'clean' of the illness.
Real Madrid's Karim Benzema was in red-hot form, scoring 15 times in the competition and lifting the trophy for a fifth time in his career after the Spanish side beat Liverpool in the final.
A striker was the need of the hour for Wolves, who have scored only three goals in six league games -- the least among all 20 teams.
Summary of the Europa League semi-final matches played on Thursday.
Barcelona must considerably reduce their wage bill in order to keep Lionel Messi, La Liga chief Javier Tebas said on Thursday, adding that the club would not be shown any leniency when it comes to obeying the league's strict financial control rules.
Spanish prosecutors are seeking a two-year prison term and a 10 million euro ($9.8 million) fine for Neymar.
United are 16th in the standings with a game in hand heading into the international break.
English Premier League leaders Manchester City and Chelsea slugged out a magnificent 4-4 draw at Stamford Bridge.
IMAGES from the UEFA Champions League matches played on Wednesday
News of all that's transpired on and off the football field
Olympic medallist who fled Belarus forced into exile again as Ukraine attacked
Barcelona were crowned Spanish Super Cup champions after goals from Gavi, Robert Lewandowski and Pedri earned them a 3-1 win over bitter rivals Real Madrid in Saudi Arabia on Sunday.
Atletico Madrid have signed striker Luis Suarez from Barcelona, the Spanish clubs said on Wednesday, bringing to an end his six-year stint at the Camp Nou.
The 24-year-old Wales international, who has agreed a six-year contract, eclipsed the previous record of 80m which was also paid by Real Madrid to Manchester United for Cristiano Ronaldo in 2009.