Viktor Gyokeres's hat-trick fired Sporting Lisbon to a stunning 4-1 rout of Manchester City in the Champions League as Ruben Amorim showed why Manchester United were so keen to lure him to Old Trafford. Sporting manager Amorim has accepted United's offer to replace Erik ten Hag and will officially take charge of the troubled Premier League club on November 11. Regarded as one of Europe's brightest young managerial minds, the 39-year-old delivered a tantalising glimpse of his acumen as Sporting exposed injury-hit City's defensive weaknesses.