The shirts were worn during Monday’s crunch derby match against AC Milan.

Runaway leaders Inter claimed the 20th Serie A title of their history after winning the game and earned the right to wear a second star on their shirts in the process.

During the match a patch will be on the sleeve of each player’s shirt, featuring a fact or a rallying cry related to their number.

Turkey midfielder Hakan Calhanoglu’s number 20, for example, points to the 20,000 deaths registered in Europe in 2022 due to extreme heat.

Marcus Thuram’s number 9 shirt alludes to the fact that 9 hectares of forest are destroyed every minute, while the number 10 worn by Lautaro Martinez highlights the average 10 per cent decline in biodiversity over the last 14 years.

“We’re very proud of this collaboration, which allows us to act as a sounding board for a very important issue,” said Inter Vice President Javier Zanetti.

“The language of sport and its universal values are capable of promoting change and reaching the hearts of millions of fans.

“We’re convinced that this appeal will not fall on deaf ears.”

The initiative is part of WWF’s ‘We Are The Panda’ campaign, which seeks to highlight the fact that the environmental crisis is a serious danger to humans, not just endangered species of animals.

“The climate and biodiversity crises affect us all,” said WWF Italia Director General Alessandra Prampolini, “They’re relevant to both our present and future, which is in danger of being extremely different from how we imagine it.

“Science tells us how our lives are at risk of changing in the coming years, with numbers that unequivocally indicate how we are compromising our natural systems.

“We’re delighted that Inter have chosen to make their shirt numbers available to communicate our message - in a simple and direct way, through a major sporting event - that the impact of our lifestyles and our production models are ‘bankrupting’ nature and the services it freely offers us.

“Becoming aware of this and becoming part of the change is the starting point for saving our planet’s habitats, together with the species that inhabit them.

“That includes the human race, which too often forgets that it’s a part of nature.”

ANSA