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The Germany international is incredibly old-school and famously wore the same pair of Adidas boots for over four years before eventually deciding to move on.
And so it might not be a shock to learn that the former Bayern Munich man is not a fan of creative and rehearsed goal celebrations.
Former Borussia Dortmund forward Aubameyang has regularly sported superhero masks with Spiderman, Deadpool, Batman and Black Panther tributes after scoring.
Yet Kroos, who appears to prefer a classic fist-pump, said the celebrations were "nonsense," "silly" and showed the Gabon star as "not being a good role model".
"If there are rehearsed dances or choreographies, I find it very silly," Kroos said on the Einfach mal Luppen podcast he hosts, as per Sport Bild.
"Even worse is if there are any objects hidden in their socks.
"Aubameyang once celebrated and took out a mask. That's where it ends with me. I don't think that's a good role model, either. What nonsense.
"What I always found sweet was Gerd Muller. He just jumped up, pulled up his pants. That was real joy, nothing big."
Aubameyang pulled out the Black Panther mask in 2019 when he scored in a Europa League last 16 second leg against Rennes at the Emirates.
He said post-match: "I needed a mask which represents me and that's the Black Panther. In Gabon, we call the national team the Panthers."
A few months back, Aubameyang paid tribute to late Black Panther star Chadwick Boseman by performing the 'Wakanda Forever' salute after scoring a stunning curling strike in the Community Shield win over Liverpool at Wembley.
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