The Real Madrid midfielder dislocated his right shoulder during his side's 3-0 defeat by Bayer Leverkusen.
A round-up of weekend action in the main European leagues.
Bayer Leverkusen will be without five regulars when they taken Liverpool in the Champions League knock-out tie.
The Brazilian midfielder signed from Serie A rivals AS Roma for 28 million euros.
Barcelona have vowed to use all legal means to fight a second fine imposed by UEFA after fans displayed pro-Catalan independence flags during September's Champions League Group E match at home to Bayer Leverkusen.
Bayern Munich went top of the Bundesliga with a 1-1 draw at Bayer Leverkusen on Saturday as rivals Borussia Dortmund slumped to their first defeat of the season with a 2-0 reverse at Borussia Moenchengladbach.
Dr Reddy's Laboratories Limited announced on Thursday that the United States Food and Drug Administration has issued final approval for the company's abbreviated New Drug Application for Ciprofloxacin tablets 100 mg, 250 mg, 500 mg and 750 mg.
News of all that's transpired on and off the football field
Rattled by embarrassing domestic defeats, Chelsea looked jittery before Olivier Giroud settled their nerves with a close range tap-in shortly after halftime at StamfordBridge following good work by N'Golo Kante and Willian in the build-up.
Pep Guardiola will return to the Nou Camp in the Champions League group stage after his new club Manchester City were drawn against his former Barcelona team on Thursday. The two sides were drawn in Group C alongside Borussia Moenchengladbach and former European champions Celtic in one of the toughest of the eight sections. Spanish coach Guardiola, who won the Champions League twice with Barca, faced the Catalans when he was in charge of Bayern Munich two seasons ago and suffered a 5-3 defeat in the semi-finals.
TV Today will blossom once FDI in braodcasting comes. That would be a big boost.
Chelsea, Manchester United and Arsenal are all preparing for sudden-death Champions League games.
The searches are linked to suspected movement of hawala money during the ongoing polls season and tax evasion, they said.
The Spanish giants drew 1-1 at home to Bayer Leverkusen in the Champions League.
A slip-up could spell the end of their hopes of making the next round in the Champions League.
Manchester United were given a troublesome tie against Club Bruges in the draw for the Champions League playoff round on Friday, although it could have been worse as they avoided Lazio, CSKA Moscow or Monaco.
Bayer Leverkusen rallied with three second-half goals to beat AS Roma 3-1 in a Champions League Group B match on Tuesday.
The Bavarians have now won the German league title a record 29 times.
Chelsea's Ruben Loftus-Cheek had a Europa League night to remember by scoring the first hat-trick of his career as the midfielder inspired them to a 3-1 home win over Belarus champions BATE Borisov on Thursday.
Lionel Messi came to Barcelona's rescue for the second time in a week by snatching a late winner to give his side a barely deserved 2-1 win at Atletico Madrid on Sunday which provisionally took the champions top of La Liga.
Bayern Munich and Atletico Madrid made it four away wins from the opening four Champions League last-16 first leg matches when they triumphed at Arsenal and AC Milan respectively on Wednesday.
The upcoming July derivatives expiry later in the week would also add some volatility to the market proceedings.
Borussia Dortmund beat Hertha Berlin 3-2 on penalties to reach the German Cup quarter-finals on Wednesday after the match finished 1-1 after extra time.
Valencia have agreed to sign Mali midfielder Seydou Keita on a contract until the end of June with an option for one more season, the La Liga club said on Wednesday.
Bayern Munich forward Robert Lewandowski took the honours as the league's top scorer with 30 goals after netting in the champions' 3-1 victory over already-relegated Hanover 96.
Bayern Munich's Robert Lewandowski and Arjen Robben scored twice each as the champions crushed Hanover 96 4-0 in the Bundesliga on Saturday to go four points clear at the top of the table as rivals Borussia Dortmund lost to Hamburg SV.