Last updated: 12th January 2009
Barcelona kept up their stunning form in Spain while David Beckham made his Serie A debut.
Hearts knocked Edinburgh rivals Hibernian out of the Scottish Cup and in France, Bordeaux closed the gap on leaders Lyon to one point.
Barcelona continued their relentless march towards the title with a sixth successive victory. Pep Guardiola's side came from behind to beat Osasuna 3-2, with Samuel Eto'o, Xavi and Lionel Messi on the scoresheet.
Arjen Robben, Raul and Sergio Ramos found the target as Real Madrid crushed Real Mallorca 3-0 to move second.
Valencia and Villarreal shared six goals in a thriller on Saturday and Sevilla defeated Deportivo La Coruna 3-1.
Beckham, on loan from Los Angeles Galaxy, was a surprise starter as AC Milan drew 2-2 at Roma, with Alexandre Pato netting a brace for the Rossoneri and Mirko Vucinic scoring both of the home side's goals.
Also on Sunday, Juventus moved to within four points of leaders Inter Milan as Alessandro Del Piero's free-kick gave them victory over Siena.
Inter had been held to a surprise 1-1 draw by Cagliari on Saturday, with Zlatan Ibrahimovic's strike cancelling out Robert Acquafresca's opener.
Hearts beat 10-man Hibs 2-0 thanks to goals from Christian Nade and Gary Glen, while Dundee United also moved into the fifth round with an emphatic 4-0 win against East Stirlingshire.
Celtic stayed on course for a domestic double as they came from behind to see off Dundee 2-1. Aberdeen, Hamilton, Inverness and Falkirk also advanced in the competition.
Lyon could only play out a 1-1 draw with Lorient, while in-form Rennes claimed a narrow 1-0 victory over Grenoble.
Bordeaux took advantage of Lyon's dropped points on Sunday as they thumped Paris St Germain 4-0. Souleymane Diawara, Fernando Cavenaghi, Yoann Gourcuff and Fernando Menegazzo grabbed the goals.
Porto slipped from first to third in Portugal as they were held to a goalless draw by Trofense. Benfica and Sporting Lisbon occupy the top two spots after wins over Braga and Maritimo respectively.
Europe's other top leagues remain on winter break. The Eredivisie resumes on Friday but the Bundesliga is not back until the end of the month.

A look at the best pictures as Michael Owen completes his surprise to Manchester United.
Pictures from the unveiling of Real Madrid's reported £56 million signing at the Santiago Bernabeu.
Pictures from the Under 21 championship semi-final between England and Sweden in Gothenburg.
Pictures from England's draw with Germany in the last Group B game of the Under 21 Championships.
A look at the best pictures as Michael Owen completes his surprise to Manchester United.
| Time | Fixture |
|---|---|
| Saturday 15th August | |
| Barclays Premier League | |
| 15:00 | Aston Villa vs Wigan |
| 15:00 | Blackburn vs Man City |
| 15:00 | Bolton vs Sunderland |
| 15:00 | Chelsea vs Hull |
| 15:00 | Everton vs Arsenal |
| 15:00 | Man Utd vs Birmingham |
| 15:00 | Portsmouth vs Fulham |
| 15:00 | Stoke vs Burnley |
| 15:00 | Tottenham vs Liverpool |
| 15:00 | Wolverhampton vs West Ham |
| Tuesday 18th August | |
| Barclays Premier League | |
| 19:45 | Birmingham vs Portsmouth |
| 19:45 | Burnley vs Man Utd |
| 19:45 | Fulham vs Blackburn |
| 19:45 | Hull vs Tottenham |
| 19:45 | Sunderland vs Chelsea |
| 19:45 | Wigan vs Wolverhampton |
| Wednesday 19th August | |
| Barclays Premier League | |
| 19:45 | Liverpool vs Stoke |
| Saturday 22nd August | |
| Barclays Premier League | |
| 15:00 | Arsenal vs Portsmouth |
| 15:00 | Birmingham vs Stoke |
| 15:00 | Burnley vs Everton |
| Time | Result |
|---|---|
| Sunday 24th May | |
| Barclays Premier League | |
| Aston Villa 1 - 0 Newcastle | |
| Blackburn 0 - 0 West Brom | |
| Hull 0 - 1 Man Utd | |
| Man City 1 - 0 Bolton | |
| Sunderland 2 - 3 Chelsea | |
| Fulham 0 - 2 Everton | |
| Arsenal 4 - 1 Stoke | |
| West Ham 2 - 1 Middlesbrough | |
| Wigan 1 - 0 Portsmouth | |
| Liverpool 3 - 1 Tottenham | |
| Monday 18th May | |
| Barclays Premier League | |
| Portsmouth 3 - 1 Sunderland | |
| Sunday 17th May | |
| Barclays Premier League | |
| Chelsea 2 - 0 Blackburn | |
| West Brom 0 - 2 Liverpool | |
| Saturday 16th May | |
| Barclays Premier League | |
| Newcastle 0 - 1 Fulham | |
| Bolton 1 - 1 Hull | |
| Stoke 2 - 0 Wigan | |
| Middlesbrough 1 - 1 Aston Villa | |
| Tottenham 2 - 1 Man City | |
| Everton 3 - 1 West Ham | |
| Man Utd 0 - 0 Arsenal | |
Skysports.com takes a look at striker Michael Owen's career to date following his Man United switch.
Skysports.com assesses Michael Owen's possible free transfer to Manchester United.
Cristiano Ronaldo says that if Real were willing to pay £80million for his signature then it is a 'fair' price.
Fiorentina are open to the sale of Felipe Melo to Arsenal, while Karim Benzema turned down the chance to join Man United.
Wolves have made their sixth signing of the summer after bringing in Marseille defender Ronald Zubar.
Michael Owen is confident he will have the last laugh after his move to Old Trafford drew some criticism.
Real Madrid-bound striker Karim Benzema has revealed he turned down the chance to join Manchester United.