Bayern Munich will go into 2016 eight points clear at the top of the Bundesliga after beating Hannover in the final game before the winter break.
Hannover’s Leon Andreasen and Bayern striker Robert Lewandowski hit the woodwork before Thomas Muller scored a penalty after Christian Schulz handled.
Home keeper Ron-Robert Zieler did well to deny dominant Bayern more goals.
Bayern manager Pep Guardiola is expected to announce he is leaving the club in the summer in the coming days.
Listen: ‘Guardiola exit would not be a crisis’
Borussia Dortmund’s 2-1 defeat by Cologne enabled Bayern to extend their lead at the top.
Bayern, who have eight players out injured, could only name four substitutes – but their starting line-up was still good enough to beat most sides in the world.
Both goalkeepers made fantastic saves before Muller’s opener. Bayern’s Manuel Neuer, making his 300th Bundesliga appearance, touched Andreasen’s header onto the crossbar.
And Lewandowski then hit the post with a curling effort from the edge of the area with former Manchester United trainee Zieler recovering brilliantly to deny Muller’s rebound with his feet when it looked as though the in-form forward had an empty net.
Bayern midfielder Arturo Vidal limped off late on, but he has until their next game – at Hamburg on 22 January – to recover.
Caen won a late penalty but Andy Delort’s effort was saved by Kevin Trapp.
PSG, chasing their fourth consecutive title, remain unbeaten domestically and have the best first-half points total to a Ligue 1 season with 51.
No side has ever gone unbeaten throughout a Ligue 1 season.
Monaco cut PSG’s lead from 20 to 19 points with an unlikely 0-0 draw against Troyes later on Saturday.
Bottom club Troyes picked up only their eighth point of the season despite having Mouhamadou Dabo sent off after three minutes for conceding a penalty. Lacina Traore missed the spot-kick for Monaco.
Third-placed Angers could reduce the lead at the top to 17 points if they beat St Etienne on Sunday.
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