Marcos Alonso (born 1990)

Marcos Alonso Mendoza (born 28 December 1990) is a Spanish professional footballer who plays for English club Chelsea as a left back or midfielder.

He started his career with Real Madrid, going on to represent mainly Bolton Wanderers in England – where he amassed Premier League totals of nine games and one goal over the course of two seasons, spending three in total with the club – and Fiorentina from Italy.