Uruguayan winger Carlos de Pena has spoken of the importance of building a close relationship with his new club and the Boro fans.

The 23-year-old was signed from his boyhood club, Nacional, and upon joining Boro he took to Twitter to pen an open letter to fans of the Montevideo-based club to thank them and explain his reasons for leaving.

"It's important to show that you have something with the club," said de Pena. 

"I was fan of Nacional since I was little and I thought it was right to write a letter thanking them. 

"Now, I'm here, I know I have to show that I have something with this club. I think this is a great club. 

"I knew Middlesbrough from the Premier League and I know we are in the Championship, but I trust we will be in the Premier League this time next year.

"I think we have a great team with a great coach who is very ambitious. 

"You get confidence and trust from the fans inside of the ground for what you do and how you work. I know it's important to show them what I have with the club."

For his part, de Pena already speaks English fluently and there has been no major hurdle to cross in terms of the language barrier.

"I consider that learning English when I was little has helped me," said de Pena. 

"It's an advantage because I can understand my team-mates. I know Spanish also. 

"That's good because I don't need a translator, and also for the daily dealings, when you arrive at a country it's important your speak their language and respect the way they do things. 

"I'm very happy here and I want to adapt to the way the club works. 

"I had five days training last week and feel good. As time passes, I want to continue improving and a better version of me will be shown."