Officials from Juventus, Lazio and Fiorentina along with Italy's World Cup referee Massimo De Santis are being investigated.
A David Trezeguet hat-trick gave Juventus a 5-1 home win over Livorno on their return to Serie A.
Cristiano Ronaldo scored the 750th goal of his remarkable career in a 3-0 win over Dynamo Kyiv on Wednesday
News of all that's transpired on and off the football field
Holders Barcelona will play Premier League leaders Arsenal in the last 16 of the Champions League, 10 years after the sides faced each other in the final, following Monday's draw for the first knockout stage.
Last year's finalists Juventus will face-off against Bundesliga champs Bayern.
Coach Roberto Mancini has insisted that he never doubted his captain Mauro Icardi after the striker scored two goals in Inter Milan's 4-0 victory at Udinese in Serie A.
Atletico Madrid's problems deepened as they were held to a 0-0 draw at Villarreal in La Liga on Friday, stretching their winless run to four games in all competitions.
The Brazilian midfielder is likely to take up his usual position in the holding role in front of the back four.
Champions Bayern Munich eased past hosts Fortuna Duesseldorf 4-1 on Sunday with winger Kingsley Coman scoring twice, to go a point clear at the top of the Bundesliga.
The Italian Football Federation's decision to award Inter their 14th title came after a sports tribunal revoked Juventus's title win from last season.
IMAGES from soccer matches played in the EPL, La Liga and Serie A on Tuesday.
champions Inter Milan are now three points clear at the top of Serie A with 17 points from seven games courtesy of their 2-1 win over Napoli.
Check out the top footballers of the weekend...
The Italian champions reportedly want to offer Tevez, whose contract runs until June 2016, a deal to stay in Turin to 2018.
Juventus progressed to the Champions League last 16 after a Cristiano Ronaldo goal and a late header from substitute Alvaro Morata gave them a comeback 2-1 home win over Hungarians Ferencvaros on Tuesday.
German fans have finally got their wish for a more exciting Bundesliga season and the title race will really hot up when leaders Bayern Munich lock horns with Borussia Dortmund on Saturday. Bayern's shock 2-1 defeat by Mainz 05 at the Allianz Arena in midweek means a home victory for second-placed Dortmund at the weekend would lift them within two points of the Bavarians with nine matches to go. Such is the worldwide interest in the top of the table clash, it will be broadcast to 208 countries. "Everyone wanted more suspense in the Bundesliga. Now you have it so all is well," Bayern coach Pep Guardiola told reporters. "We are not perfect. Sometimes you have to lose to understand what you need to do in order to become an even better team." Bayern, who are chasing a record fourth consecutive Bundesliga crown, had an 11-point lead earlier in the season. The defeat by Mainz and a 2-2 draw at Juventus in their Champions League last-16 first leg, after leading 2-0, have raised alarm bells among the supporters. "The results against Juve and Mainz were not good but our performances were," said Guardiola who is leaving at the end of the season to join Manchester City.
A summary of Saturday's action in Ligue 1, La Liga and Serie A.
Coach Didier Deschamps said that no more of his players will be leaving the club even if they have to play in Serie B next season.
Barcelona's Lionel Messi rescued a 1-1 draw at Villarreal with a sensational late free-kick on Sunday but could not prevent the champions finishing the weekend third in La Liga, five points behind leaders Real Madrid.
FIFA has extended the seven-month ban on ex-Chelsea striker Adrian Mutu for drug abuse worldwide.
, Juventus thumped Chievo 4-0 away to win their 12th league game in a row but it was not enough to topple leaders Napoli who thrashed Empoli 5-1.
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.
Lionel Messi fittingly sealed Barcelona's 26th La Liga title on Saturday by coming off the bench to score the goal in a 1-0 win over Levante in front of a jubilant Nou Camp crowd, who celebrated a remarkable eighth league crown in 11 years.
Barcelona closed in on the La Liga title after beating 10-man Atletico Madrid 2-0 in Saturday's top-of-the-table showdown at the Nou Camp as late strikes by Luis Suarez and Lionel Messi gave the Catalans an 11-point lead at the top of the table.
"I'm disappointed, obviously, as a Manchester United fan and a Real Madrid player," said David Beckham.
Juventus coach Massimiliano Allegri has confirmed that the Serie A leaders are interesting in signing Dutch midfielder Wesley Sneijder from Galatasaray.
The English side drew goalless with Juventus in the second leg, but made it to the Champions League semi-finals with a 2-1 aggregate.
Juventus midfielder Pavel Nedved is almost certain to miss his club's Champions League second leg match with Real Madrid.
Real Madrid's hopes of overhauling La Liga leaders Barcelona suffered a stinging blow when they were held to a 2-2 draw at home to Valencia.
The 41-year-old has made 640 appearances in Serie A, within striking distance of the 647-game record of AC Milan defender Paolo Maldini. Buffon began his career at Parma before moving to the Turin club in 2001.
India's chief football coach said the under-17 tournament will not be easy for India as teams like Iran and Kuwait are in their group.
A round-up of action in Europe's main leagues over the weekend.