London: Atletico Madrid striker Borja Baston, 23, has signed a four-year contract with Swansea City, the Premier League club said. Striker Borja Baston will wear the number 10 jersey and could make his debut in Swansea's Premier League opener at Burnley on Saturday, Xinhua news agency reported. "I want to repay the transfer fee paid for me with good performances and results. It's difficult to set a target of goals, but my mantra is take it goal by goal. Hopefully I can score a lot of goals," the Spaniard said on Thursday. Baston came through the youth system at Atletico, making one first-team appearance in 2010, and played for Murcia, Huesca, Deportivo La Coruna, Real Zaragoza and Eibar on loan.