King Charles III should go to Prince Harry’s Invictus Games when he brings the event to Britain, a royal expert told Newsweek.

The monarch, 75, will have a difficult decision to make when his younger son takes the Invictus Games to Birmingham, a city in England’s Midlands region, in July 2027.

There will inevitably be questions over whether Charles will go, as there were in May, when he didn’t attend a service of thanksgiving in honor of Invictus at St Paul’s Cathedral in central London.

The games will go on for two weeks, giving the king plenty opportunities to attend, so his absence and a perceived lack of support would be conspicuous.

Afua Hagan, a prominent U.K. royal commentator, told Newsweek: “Charles should 100 percent go because it’s not about Prince Harry and the falling out or anything else.

“It’s just about wounded veterans. When we’re discussing Invictus it often gets lost, but its about those veterans. It’s about the power of sport.