Gelson Martins is happy to be joining Diego Simeone's Atletico Madrid.

The switch is not without controversy as Sporting CP have reported Atletico following a dispute over Martins' contract, but the winger is solely focused on excelling for his new club.

"Simeone was very important in my arrival," he explained after landing in Madrid.

"I took the decision thanks to him and I know that I'll really like working with Simeone.

"Atletico are a very strong team with big players, a team that I fit in perfectly with my style of play.

"I'm very happy to be here, it's a very interesting project for me and I'm going to give my all for Atletico."