London, Feb 3 (IANS): English Premier League leaders Chelsea have completed the formalities to sign Colombian winger Juan Cuadrado from Italian side Fiorentina.

The 26-year-old winger left Fiorentina for around $40 million on a four-and-a-half-year-deal Monday, reports Xinhua.

Cuadrado, who starred at the World Cup for Colombia, scored five goals in 17 matches for Fiorentina this season.

He joins a Chelsea side competing for titles in the Premier League and Champions League with their first chance for silverware March 1 -- League Cup final against Tottenham.

Meanwhile, Manchester United vice-captain Darren Fletcher was allowed to join West Bromwich Albion on a free transfer.

The 31-year-old midfielder has spent his entire career at United, making 342 appearances and winning the league five times, but he has been unable to earn him a place in Louis van Gaal's starting lineup this season.

Benoit Assou-Ekotto's Tottenham career is over after being released from his contract. The defender has not played for the club since May 2013 and spent last season on loan at Queens Park Rangers.