Emiliano Martinez was the hero after saving two penalties to help Arsenal to a shoot-out victory against Bayern and revealed his secrets to such success with spot-kicks.

Martinez looks set to be Arsenal’s deputy to Petr Cech next season and proved his worth after replacing the experienced shot-stopper at the Shanghai Stadium on Wednesday, saving two penalties against the Bundesliga champions.

And after being asked how he performs so well in such situations, Martinez admitted: “I guess, to be honest. Since I was a kid, I’ve never lost on a penalty shoot-out. I keep building my luck in penalties.

“That’s what we train so hard for, extra-time. Goalkeepers always start early and finish late. The boss said that I had 20 or 25 minutes to play in this game, and I tried to do my best. It worked.

“I saved two penalties at the end and that was pretty incredible, but I think everyone played a part in this game. [Petr Cech] made some good saves and the defence was outstanding in these conditions.

It capped a good pre-season so far for Arsenal, having beaten Sydney 2-0 and Western Sydney Wanderers 3-1, both at the ANZ Stadium, in the Australia leg of the tour. They followed it up with a win over Bayern in Shanghai, China, and next face Chelsea before returning home.

“We’re really glad because we’ve had three wins, or one draw and two wins, so hopefully we keep building our game,” added Martinez.