Diego da Silva Costa ( born 7 October 1988), is a professional footballer who plays as a striker for English club Chelsea and the Spain national team. He has been described by pundits as a talented striker whose main attributes are his physicality, goalscoring and ability to keep possession. Costa has been criticised and punished for several confrontations with opponents. He began his career with Braga and Penafiel in Portugal, and was signed by Atlético Madrid in 2007. He was loaned back to Braga, and then to Celta de Vigo and Albacete before being sold to Real Valladolid in 2009. He returned to Atlético the following season and went on to play a key role in their attack, scoring 27 goals as they won the league title in 2014, and then joined Chelsea for £32 million. He scored 21 goals in his first season in England, winning the Premier League and League Cup. Costa is originally Brazilian and was naturalized through residence in his seven years in Spanish football. Internationally, Costa played twice for Brazil in 2013, but later declared his desire to represent Spain, having been granted Spanish citizenship in September 2013. He made his debut for his adopted nation in March 2014, and represented them at the 2014 FIFA World Cup.