Manchester United keeper David de Gea feels he is a better custodian since joining the club from Atletico Madrid in 2011. United paid Atletico Madrid £18.9m to take De Gea to Old Trafford but he initially struggled to cope with the physical demands of the Premier League.
"I have been here for four years now and I think that every aspect of my goalkeeping has improved," De Gea told United's official website.
"It is hard to single out one area because we have worked and improved on everything. I think the fact that I have started to do interviews in English has really helped, it has helped me to learn more of the language as well."
But De Gea insists he can improve further as Louis van Gaal's side try to retain their place in the Champions League places.
"Again, no matter how excellent your form is, you can always get better and there are always aspects of your game that you can improve," he added.
"You can improve everything. No matter how well people think you are playing, or how well you think you are playing yourself, it is always a case of working on every facet of your game.
