Kyle Walker’s World Cup appearance is under serious question after Manchester City confirmed the full-back has had “successful” surgery on a groin injury.Walker suffered the injury in the first half of City’s astonishing 6-3 derby victory over Manchester United at the Etihad Stadium on Sunday.Six and the City! Nine goals, two hat-tricks and proper bangers at EtihadA statement from City read: “Kyle Walker has undergone surgery after suffering a groin injury to his left leg during the first half of our 6-3 win over Manchester United on Sunday. The surgery was successful, and a more detailed prognosis will be provided in due course.”As players we have to appreciate injuries are part and parcel of the game we love. My operation on Tuesday was a success and now I can concentrate on my rehab and getting back to full fitness. I will be supporting my team mates every day in any way I can. 💙 pic.twitter.com/BcwIAjkb8B— Kyle Walker (@kylewalker2) October 6, 2022 Walker is still hopeful of being fit for the World Cup – but it will be close. His availability for Qatar depends on how his body reacts to the operation, with the next fortnight key. Medics working with Walker know he has usually been a “quick healer” from his past injuries.##NAJAVA_MECA_6698103##The player had been feeling a niggle in his groin before the injury worsened in the Manchester derby.