The Hammers will be active in the summer transfer window as they head into the Olympic Stadium, and one position which could be strengthened is right back.
Arsenal loanee Carl Jenkinson suffered a season-ending injury back in January and is unlikely to be brought back to East London for next season, whilst January signing Sam Byram has also had injury problems since arriving from Leeds United.
Manager Slaven Bilic has been forced to play winger Michail Antonio at right back as a result, and after disastrous results against Swansea City, that experiment may come to an end this summer.
Rafael, 25, will be best known for having played for Manchester United, racking up well over 150 appearances for the Red Devils having signed from Fluminense at the age of just 16 alongside his twin brother Fabio.
However, having fallen out of favour at Old Trafford, the Brazilian ace moved on to Lyon last summer, penning a four-year contract with the French side as he looked to play first-team football.
With 26 appearances this term, Rafael has been a regular for Lyon but could be tempted by a move back to the Premier League, with the Hammers allegedly interested in adding him to their squad and giving the aforementioned Byram some competition at right back.
Would you like to see West Ham sign Fabio?