Hugh Grant appeared to nod off during a high-stakes Wimbledon quarter-final on Wednesday, despite sitting front and centre in the Royal Box alongside Queen Camilla and a string of famous guests.The Love Actually star, 63, was caught on camera seemingly taking 40 winks as Novak Djokovic battled it out with Flavio Cobolli on Centre Court in a tense opening set that ended in a tiebreak.