Prince Harry had a funny exchange with an Invictus Games athlete when he was quizzed about his royal credentials. The Duke - who is now all but estranged from the royal family - couldn't help but laugh when he was asked whether he was a Prince during an exchange with an excited sportsman from the Ukrainian team. Upon confirming his title, he was then asked: "Where is your crown?" The father-of-two - fifth in line to the throne - could only laugh in response before he embraced the competitor. Harry has certainly been in high spirits in recent days, and has been caught dad-dancing, doing a silly moose impression, and joking and hugging the competitors. He also managed to hilariously photobomb Nelly Furtado and Meghan Markle's selfie as the Invictus Games kicked off in Vancouver. It comes after Donald Trump denied he would be looking to deport Prince Harry after he admitted taking recreational drugs in his hit memoir Spare. But the president told the New York Post on Friday: "I'll leave him alone. He's got enough problems with his wife. She's terrible." But Harry appeared to hit back during the Invictus Games opening event at the weekend. Addressing the 40,000-strong audience, he commented: "At this moment, when there is no shortage of crises, no absence of uncertainty, no lack of weak moral character in the world, the values you embody, the way you carry yourselves – not only at the Invictus Games, but each and every day – your courage, your resilience, your humanity, illuminate a path forward for us all." Many have felt that his remarks were aimed at the US President. The prince founded the Invictus Games in London in 2014, with this year marking the seventh edition of the competition for wounded military veterans. The nine days of competition will see more than 500 athletes competing in 11 different events, including winter sports for the first time. Elsewhere in his emotional speech at the ceremony, Prince Harry, who himself served in Afghanistan and saw some of his comrades suffer life-changing injuries, told the crowd of 40,000: "We gather here in Vancouver in a spirit of unity. Beyond any differences, here at the Invictus Games we are grounded in mutual respect, competing fiercely, but believing in one another." The prince honoured Canada's indigenous First Nations peoples in his speech, thanking them for hosting the games, and he told the competitors: "Over the past decade I've lost count of the times we've heard you tell us that the Invictus Games saved you. "Respectfully, I disagree. Invictus didn't save you. You saved yourself." The ceremony also saw Coldplay take the stage, with frontman Chris Martin playing the Invictus Anthem, which he wrote in 2014. Canadian singer Nelly Furtado performed her 2000s global hit I'm Like a Bird while pop star Katy Perry closed the show, performing some of her big hits including chart-topper Roar.