The court found that PSG had failed to pay three months of Mbappe's salary, an ethics bonus and a signing bonus due under his employment contract.
Striker Costa ends second spell at Atletico Madrid.
Raphinha struck twice late in the second half as Barcelona secured a hard-fought 2-0 victory over a resolute Osasuna side on Saturday, extending their lead at the top of the LaLiga standings to seven points.
Playing at the Parc des Princes against the team who denied them the title last year was the perfect occasion for PSG, owned by big-spenders Qatar Sports Investments since 2011, to wrap up their fifth title in the Qatari era.
FC Barcelona hammered Newcastle United F.C. 7-2 to reach the Champions League quarter-finals, while Liverpool F.C., Bayern Munich and Atltico Madrid also advanced.
Brazil's Botafogo stunned European champions Paris St Germain 1-0 on Thursday to throw Group B at the Club World Cup wide open.
Dembele was able to attend the ceremony, as he was already in Qatar for Wednesday's Intercontinental Cup final where PSG take on Flamengo.
Mbappe chasing Ronaldo record as Real Madrid host Celta
Messi's return to Barca not realistic, says club president Laporta
The 26-year-old French forward wore the number nine shirt in his debut season after arriving from Paris St Germain on a free transfer.
Nine players from treble-winning Paris St Germain have been nominated for the men's Ballon d'Or this year along with the club's coach Luis Enrique as France Football announced the list of nominees on Thursday.
The French and English sides, two of European football's most powerful and richest clubs, will compete for the honour of being the first champions of FIFA's expanded competition, created with the promise of revolutionising club football and as a glittering curtain-raiser for the 2026 World Cup in North America.
England will begin their World Cup quest next June against a very familiar foe with seasoned tournament regulars Croatia the first hurdle for Thomas Tuchel's highly-fancied team.
United States President Donald Trump paid homage to soccer great Pele after being met with boos and cheers from the crowd at the Club World Cup final on Sunday at MetLife Stadium in East Rutherford, New Jersey.
A penalty from Kylian Mbappe in the 10th minute of stoppage time rescued Real Madrid, giving them an agonising 2-1 victory over local rivals Rayo Vallecano in LaLiga.
Paris St Germain's Champions League triumph marked the culmination of a profound transformation, from a club defined by star power to one shaped by structure, tactical clarity and collective belief.
Holders Paris St Germain cruised to a 3-0 victory over Stade de Reims in the Coupe de France final on Saturday, claiming a third domestic trophy for the second successive season, and preparing for next week's Champions League final in style.
Paris St Germain played out their first goalless draw of the season at Athletic Bilbao on Wednesday but stayed in the driving seat for direct qualification for the Champions League last-16 after a string of fine saves by home goalkeeper Unai Simon denied the defending champions.
A summary of Wednesday's action in the UEFA Champions League.
The Qatari-owned French club have never won the Champions League despite massive spending down the years on the likes of Kylian Mbappe and South American duo Lionel Messi and Neymar.
Real Madrid are considering creating a subsidiary that would allow external investors to buy a stake of around 5% in the world's most valuable football club.
Images from the Champions League semi-final second leg between Paris St Germain and Arsenal, at Parc des Princes, Paris, France, on Wednesday.
In front of a tournament-high crowd of 81,188 at MetLife Stadium that included US President Donald Trump, Chelsea triumphed to bag the biggest club title.
Images from the Club World Cup quarter-finals between Paris St Germain-Bayern Munich and Real Madrid-Dortmund.
Joao Neves scored twice as Paris St Germain swept aside Lionel Messi's Inter Miami 4-0 at Atlanta's Mercedes-Benz Stadium to secure their place in the Club World Cup quarter-finals.
Cole Palmer lives up to his nickname in a scorching Club World Cup final on Sunday, scoring twice in Chelsea's 3-0 win over Paris St Germain on another broiling day at MetLife Stadium.
Cole Palmer scored twice as the Chelsea proved too good for the Parisians, fresh off their maiden Champions League triumph last month.
Inter Milan manager Simone Inzaghi said he barely recognised his side as they fell to a deserved 5-0 defeat at the hands of Paris St Germain in the Champions League final on Saturday.
An RFEF judge ruled that in order to preserve the integrity of the competition only a case of force majeure would warrant a change to the official calendar, and that Real's case did not justify an alteration, Europa Press news agency reported.
Images from the Champions League semi-final first leg between Arsenal and Paris St Germain at Emirates Stadium, London, on Tuesday.
'I'm really eager because it's a World Cup. We're coming off winning the last one, and being able to defend it on the field again is spectacular because it's always a dream to play with the national team.'
Real Madrid manager Xabi Alonso declined to comment on Saturday after Barcelona winger Lamine Yamal suggested the capital club "cheat" and "complain" in a televised interview on Friday.
Paris St Germain's hopes of becoming the first side to complete a Ligue 1 season unbeaten came crashing down at the Parc des Princes on Friday when Nice handed them their first defeat of the league campaign, winning 3-1 to boost their own Champions League ambitions.
Paris St Germain forward Ousmane Dembele got a roaring welcome usually reserved for tennis champions when he carried the freshly-won Champions League trophy onto centre court on Monday.
Bayern Munich made it 16 wins from 16 games this season to underline their credentials as early Champions League favourites, beating holders Paris St Germain 2-1 away as Luis Diaz scored two goals and was shown a red card on Tuesday.
Real Madrid have signed 17-year-old midfielder Franco Mastantuono from Argentine side River Plate on a six-year contract, the LaLiga club said on Friday.
Spain face Ronald Koeman's Netherlands away on Thursday before returning home for the second-leg on March 23.
A summary of Wednesday's action in the UEFA Champions League.
Liverpool have signed French striker Hugo Ekitike from Eintracht Frankfurt, the English Premier League side announced on Wednesday.
Manchester City's spending of more than 180 million pounds ($223.58 million) was the second-biggest outlay ever worldwide by a club in the January transfer window.