At former clubs Saint-Etienne and Borussia Dortmund, he would occasionally produce a mask when celebrating.
“The very first time I put a mask on, it was Spiderman when I was at Saint-Etienne," Auba explained to Arsenal Player. “It was a tribute to a goalkeeper at the club, Jeremie Janot.
“When I was younger he came out on to the pitch in the full Spiderman suit and played in goal. It was crazy!
“On his birthday, I put the mask on to celebrate that. The second time, it was my son's birthday, when I was playing for Dortmund. I did Batman and Robin with Marco Reus against Schalke in the derby.
“There are others [for fans to see], for sure. Don't worry about that! Of course after a few goals, I'll share some nice celebrations with the fans."