The Bayern Munich defender and his team-mates face the might of Real Madrid in the first-leg of their last four showdown tonight but the 29-year-old star has been doing his best to unwind before the clash by bringing his Labrador Coco to the club’s training ground on Tuesday.
And the pup even enjoyed a run-out as his owner embarked on a game of slingshot on the lush turf in Bavaria.
For those of you who think Hummels has gone barking mad then we must point out he was not alone in bringing his pet to work.
Midfielder Sebastian Rudy also got in on the act as he was accompanied by his golden retriever Diego.
And Thomas Muller also let his Labrador Daddy off the lead to join in the dog fun.
But Bayern will need more than man’s best friend to overcome reigning holders Madrid.
Bayern will hand a late fitness test to defender David Alaba ahead of kick-off at the Allianz Arena.
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On-loan Madrid midfielder James Rodriguez could also start against his parent club.
The visitors have no fresh injury concerns going into the game.