Aguero will not start against Man United: Guardiola.
Barcelona striker Luis Suarez is in doubt for next month's Copa America.
Lionel Messi returned to training on Monday after recovering from a stomach bug that caused him to miss Barcelona's goalless draw against Malaga on Saturday.
Cristiano Ronaldo scored his 400th goal for Real Madrid as Zinedine Zidane's side closed in on a first La Liga title since 2012, easing to a 4-1 win over Sevilla on Sunday while Neymar hit a hat-trick for Barcelona, who thrashed Las Palmas 4-1.
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A round-up of Tuesday's action in the UEFA Champions League.
Brazil have conceded only one goal in this World Cup, the equal most stingy rearguard along with Uruguay, and allowed only five shots on target in four games, the fewest of any side.
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Real Madrid's bid to land Gareth Bale from Tottenham Hotspur for a world record fee in the region of 100 million euros is out of place in the current economic climate, Barcelona coach Gerardo Martino said on Saturday.
Luis Suarez has progressed from his impressive debut La Liga campaign to produce the most prolific season of his career and fire Barcelona to a second straight title, free of the stigma of his ban for biting which accompanied him to Spain in 2014. It was fitting that the Uruguayan should score a hat-trick in the comfortable 3-0 victory at Granada on Saturday to clinch the title, taking his tally to 40 goals in 35 games. He is the first player other than Cristiano Ronaldo and Lionel Messi to finish as La Liga top scorer since 2009 but his contribution to Barca's title triumph goes beyond his goals and 16 assists. For Suarez is the hardest working of the feted 'MSN' partnership he forms with Messi and Neymar, a trio who have delivered 90 of Barcelona's 112 league goals. He is also the most willing to close down opponents and run into space and, naturally, he has shown himself to be the player who is keenest to throw himself into any physical battle.
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The forward was again the stand-out Brazil player and he coolly side-footed home his 60th international goal in the 76th minute after Diego Laxalt brought down Danilo, although Uruguay claimed there was a handball in the build-up.
A much-changed Real Madrid ground out a 2-0 victory at third-tier Fuenlabrada in their King's Cup last-32 first leg on Thursday, needing two dubious penalties to break down their stubborn hosts as both sides finished with 10 men.
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Neymar scored twice as Barcelona reached the Champions League semi-finals.
Barcelona were in danger of being toppled from the top of La Liga standings on Sunday after they suffered a shock 2-1 defeat at Deportivo La Coruna.
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Riyad Mahrez struck twice as Manchester City reached the Champions League final for the first time thanks to a 2-0 victory over Paris St Germain at the Etihad Stadium on Tuesday that secured a 4-1 aggregate win.
Barcelona could be without captain Andres Iniesta for the rest of the year after the midfielder sustained a knee injury in an eventful 3-2 La Liga win for the leaders at Valencia on Saturday.
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.
Liverpool's Brazil midfielder Philippe Coutinho is on the verge of signing for La Liga leaders Barcelona in a club-record deal, according to Spanish media reports.
Barcelona's attacking trio of Lionel Messi, Luis Suarez and Neymar were all on target as the champions roared back into life in La Liga with a dominant 5-1 victory at promoted Leganes on Saturday. Messi sidefooted in a simple cross from Suarez to strike the opening goal after 15 minutes and returned the favour for the Uruguayan to nudge in the second in the 31st.
A red hot Luis Suarez scored four goals and contributed three assists as Barcelona's stuttering La Liga title charge sparked back to life with a spectacular 8-0 thrashing of Deportivo La Coruna on Wednesday.
Karim Benzema fired Real Madrid to a 1-0 win in the city derby against Atletico Madrid on Saturday which underlined Real's La Liga title credentials. Bayern Munich scored three goals in the opening 26 minutes to defeat Mainz 05 3-1 away on Saturday and go two points clear at the top of the Bundesliga with their sixth straight win.
Can 2018 top its predecessor in Sporting Glory?
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 by thrashing local rivals Espanyol 5-0 on Sunday as Atletico Madrid dropped out of the race after losing 2-1 at Levante and Real Madrid beat Valencia 3-2.
Round-up of football matches played around Europe on Saturday.
News of all that transpired on and off the football field.
News of all that's transpired on and off the football field
Lionel Messi and Luis Suarez were on target as holders Barcelona thrashed Real Sociedad 5-2 to reach the King's Cup semi-finals for the seventh successive year with a 6-2 aggregate victory on Thursday.
A round-up of Sunday's action in the South American World Cup qualifiers.
Earlier in the night, Bolivia were denied their first win when Kaku scored with 18 minutes remaining to rescue a 2-2 draw for home side Paraguay in Asuncion.
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Barcelona finished three points behind Real Madrid last season but there is concern the gap between Spain's biggest two sides could be far larger this season.
Paris St Germain centre back Thiago Silva says the French club has what it takes to win their Champions League Group F after Tuesday's decider at Barcelona.
Alaba strike on Clasico debut gives Real Madrid 2-1 win at Barcelona.
Quaison fires Sweden to extra-time World Cup playoff win over Czechs
Toni Kroos netted his first for Real Madrid and was hailed as the best player on the pitch by his coach as the hosts tore apart Rayo Vallecano 5-1 in La Liga on Saturday to extend their winning streak to 13 games.
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