Chelsea are looking at potential wingers as doubts surround the long-term futures of Eden Hazard, Willian and Pedro, while Callum Hudson Odoi faces a lengthy spell on the sidelines with a serious Achilles injury.A Chelsea source has told Football Insider that Cardiff attacker Murphy has emerged on the club’s radar after catching the eye for the Bluebirds this season and he would also boost the Londoners’ dwindling homegrown quota.The Blues are also aiming to bolster the number of homegrown players to boost their quota with the likes of current homegrown players Gary Cahill, Rob Green and Danny Drinkwater all likely to leave Stamford Bridge this summer.Crystal Palace and Burnley are also monitoring Murphy’s situation at Cardiff and are preparing moves for the winger if the Bluebirds suffer relegation from the Premier League.Cardiff are expecting to lose a number of their key players if they go down and Chelsea are keeping tabs on Murphy as he would fit their profile of being a homegrown player and happy to be a squad member at Stamford Bridge.