​David Ospina has opened up about how much focus and mental strength it takes to make it at the top level as a goalkeeper.

The Arsenal shot stopper was quoted in the ​Daily Star about what he considers to be the hallmarks of what make a truly outstanding number one at club and international level.

Ospina has had to play back up to Petr Cech in north London for a number of seasons now, but is still handed the opportunity to impress in goal on occasions - and he explained just what it takes to be a seasoned pro in one of the world's toughest leagues.

Peru v Colombia - FIFA 2018 World Cup Qualifiers

He said: "You need to have a strong character as well as being patient and calm.

"It’s also a position that helps you to develop mental strength, because you can be the best, but if you make one mistake, you are more heavily criticised than any other position on the pitch.

"That really helps you to become strong psychologically. A great keeper must enjoy the trust of his team and be able to remain calm and focused.

"There may be key moments when the team needs him to take direct action. Maintaining focus is important, but very hard to achieve, particularly against certain teams.

“In some matches, the ball might only come near you two or three times, yet those moments can be decisive. If you are not focused, and living every moment of the match, you can be caught out suddenly. It’s very hard to maintain focus, so you have to work at it.

“I make the most of that calmness I’ve already mentioned. I am passionate about goalkeeping, I love being a keeper.

"You have to enjoy it in order to be calm and relaxed on the pitch. What I want is to be able to play and carry on showing what David Ospina can do for Arsenal.”

Colombia international Ospina also revealed which former and current keepers he watched to try and learn from in a bid to up his game growing up in his homeland.

He continued: “I always studied other keepers. In Colombia at that time this meant Rene Higuita, Faryd Mondragon, Oscar Cordoba and the late Miguel Calero. At international level, I would watch Iker Casillas and Gianluigi Buffon.

“I tried to notice what each keeper did really well, but it’s important to develop your own style - a style that works for you."