Marca claim Guardiola's relationship with Bayern has broken down.
Former England international feels Louis van Gaal's philosophy does not suit Germany captain.
Holders Barcelona will play Premier League leaders Arsenal in the last 16 of the Champions League.
Guardiola is currently in talks with Bayern Munich over extending his contract.
Louis van Gaal should give Bastian Schweinsteiger more time to adapt, believes Karl heinz Rummenigge
Red Devils put off moving for Catalan coach over his availability, report claims.
Costa appeared keen on the chance to work alongside Jose Mourinho in January.
Sadio Mane is being scouted by Bayern Munich for a move in January.
The ex-Spain international is out of contract at the Bundesliga giants in the summer of 2016.
Robben has 18 months remaining on his Bayern contract but is not considering a move away.
Thomas Muller has admitted that the wages offered by top English clubs are tempting.
Jose Mourinho will make a bid for Thomas Muller to replace Diego Costa in the starting line up.
Phil Neville belives John Stones has the talent to play for Barcelona or Real Madrid.
Memphis Depay has not started a game since being humiliated 3-0 by Arsenal at the Emirates.
Arsene Wenger believes he has played against teams that used performance enhancing drugs.
Harry Kane has scored five goals in his last three games in all competitions.
Bayern Munich boss would 'destroy' Old Trafford traditions according to the club legend.
Gunners looking unlikely to progress in Europe after shellacking at the hands of Bayern Munich.
Philipp Lahm is incredulous at the amount of criticism that Mesut Ozil has received in recent years.
Bayern Munich host Arsenal at the Allianz Arena. Find out where to watch the game live in the UK.
Frenchman preferred Patrick Vieira and Emmanuel Petit over Guardiola, who was then already in his thirties.
Arturo Vidal believes Bayern Munich at home will be too difficult for Arsenal to handle.