Ruud van Nistelrooy was furious after an "unacceptable" and "unthinkable" error saw Harry Maguire's offside winner stand as Leicester exited the FA Cup at his former club Manchester United.The Dutchman started the season as one of Erik ten Hag's assistants and stepped up as interim manager, before being let go by Ruben Amorim and swiftly taking up the job as Foxes boss.Bobby De Cordova-Reid's first-half header had Leicester dreaming of a fourth-round win at Old Trafford, but substitute Joshua Zi

Ruud van Nistelrooy was furious after an "unacceptable" and "unthinkable" error saw Harry Maguire's offside winner stand as Leicester exited the FA Cup at his former club Manchester United.The Dutchman started the season as one of Erik ten Hag's assistants and stepped up as interim manager, before being let go by Ruben Amorim and swiftly taking up the job as Foxes boss.Bobby De Cordova-Reid's first-half header had Leicester dreaming of a fourth-round win at Old Trafford, but substitute Joshua Zirkzee levelled after United reacted to being booed off at the break.