A round-up of Sunday's matches in La Liga, Serie A and Bundesliga.
In other European football action Real Madrid were left frustrated after a goalless draw against Athletic Bilbao in their La Liga match on Sunday.
As Barca prepare for a trip to Madrid to play Rayo Vallecano on Saturday, they are still reeling from Tuesday's 3-2 Champions League reverse at Paris St Germain, when their defence was badly exposed by the Ligue 1 title holders.
Liverpool thrashed Atalanta 5-0, Real Madrid boosted their chances of reaching the Champions League knockout stages with a 3-2 home victory over Inter Milan and Bayern Munich came from behind to crush RB Salzburg 6-2.
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.
Images from football matches played across Europe on Sunday.
The last-16 knock-out round kicks-off this week with Chelsea visiting Paris on Tuesday; Zidane to coach Real Madrid as manager in his first match in Europe
Average monthly searches for 'bull market' have gone down significantly from May-June peak.
Cristiano Ronald headed his 300th goal for Real Madrid in a laboured 2-0 La Liga victory at neighbours Rayo Vallecano on Wednesday that kept the gap on leaders Barcelona down to four points.
Lionel Messi marked his 300th La Liga appearance with a record-equalling hat-trick and an assist for Neymar as Barcelona stayed hard on the heels of leaders Real Madrid with a 5-0 romp at home to Levante on Sunday.
News of all that's transpired on and off the football field
Manchester City swept aside second-tier Cardiff City 2-0 with first-half goals from Kevin De Bruyne and Raheem Sterling on Sunday to reach the FA Cup fifth round in their quest to win an unprecedented four trophies this season.
Spain coach Vicente del Bosque has called Atletico Madrid's Brazil-born forward Diego Costa into his squad for the first time for this month's friendlies away to Equatorial Guinea and South Africa.
Barcelona look well set to wrap up the La Liga title.
Images from Day 2 of the Australian Open in Melbourne on Tuesday
Here is the round-up of all the football action across Europe on the weekend
A round-up of Wednesday's league stage matches in the UEFA Champions League.
A summary of the results of the major European football league matches on the weekend.
Images from the Champions League matches played across Europe on Wednesday.
