Another Euro 2024 star is wearing same controversial £229 wristband as Cristiano Ronaldo that could 'result in UEFA ban'

Cristiano Ronaldo is one of two captains at Euro 2024 wearing a controversial wristband.

Fitness freak Ronaldo has played in four games for Portugal at the tournament, failing to find the net so far.

Key data relating to his performance has been tracked at the showpiece, courtesy of a 'Whoop' accessory.

Ronaldo recently invested in the company, who published insight into his heart rate during the 0-0 draw with Slovenia.

The five-time Ballon d'Or winner saw an extra time penalty saved by Jan Oblak and was in tears afterwards.

He then recovered to convert his spot-kick in the shoot-out victory and as revealed by WHOOP, his heart rate was at its lowest level when he stepped up from 12 yards for the second time.

Image: WHOOP

Ronaldo wears the WHOOP band during training, sleeping, and recovering, and claims it has had a "transformative impact" on his life.

But Liverpool and Netherlands skipper Virgil van Dijk is also an ambassador for the human performance company.

During the Euros, Van Dijk has been wearing the band, which costs £229-per-year.

His activities - ranging from playing games in Germany to going for pre-game walks - have been logged.

His sleeping performance has also been tracked and shared online, with Van Dijk getting roughly 8 hours sleep.

Image: WHOOP

However, Whoop have been accused of "ambush marketing" following the publication of the data.

Head of global sponsorships at Visa and Coca-Cola Ricardo Fort took X to vent: "Cristiano and WHOOP is ambush marketing to Euro 2024. It is illegal and both the player and the company should be fined.

"The post is about a UEFA matches, uses the names of the two national teams playing, score, and a player on the field.

"They are implying an association with the event and that is illegal. Not having 'a competitor as a sponsor' isn't a reason to tolerate infringements."

Image: Getty

Whoop are not a sponsor but while they have used the competition for promotion, they cleverly did not mention the Euros by name in the content.