The 21-year-old had his team-issued watch worth £40,000 stolen as he approached his McLaren GT sportscar in an official Wembley car park after watching England lose in a tense penalty shootout to Italy last Sunday night.

McLaren said Norris was “shaken but unharmed” in a statement following the incident but speaking publicly for the first time at Silverstone on Thursday, the Briton revealed he is feeling “a bit sore” and has been struggling to sleep.

"I'm fine... but I've been better, I can say that," Norris told Sky Sports F1. ”I'm not in perfect condition, I'm not going to lie.

"Some work to do, mentally. Of course I talk about that a lot and mental health, and mental strength is very important. I've not been sleeping that great, and so on. Not ideal and I'm feeling a bit sore.

“But I'm not the guy in the worst position after Wembley. I'll work on it, I'll make sure I'm in the best shape possible and I feel like can still go out and focus on what I need to do and that's the main thing.”

Norris sits a remarkable fourth in the championship heading into his home event, having enjoyed an outstanding start to the 2021 season as the only driver to score points in each of the opening nine races.

Opening up further about his experience at Wembley - which was the first football match Norris had ever attended - he added: "Tough, not the night I wanted, and I guess not the night we all wanted from an England perspective, and definitely not the way I wanted it to end.

"I guess it's just unlucky. I don't really want to go into too much detail, but I'm thankful that I'm here. It's not the nicest experience for anyone to go through and it's not only me that it's happened to, it's happened to other people.

“It's something I don't wish upon anyone and of course if anyone else goes through it, I can sympathise with them and I know what they feel like.

"It's tough, it's been a tough few days to get over it and make sure I'm sleeping well and everything.

"Not in the perfect condition but I'm happy I'm here, and I'm still healthy and reasonably good."