British swimming chiefs have condemned the move by Olympic silver medallist swimmer Ben Proud to join the Enhanced Games.

The 30-year-old is the first British athlete to join the controversial event that permits athletes to use performance-enhancing drugs, announcing his decision on Instagram on Wednesday to mostly negative comments.

"It's time for a shift," Proud wrote. "I will be retiring from traditional swimming to compete in the Enhanced Games.

"Stepping into a framework that challenges everything we know about performance, and a chance to chase the outer edge of human potential with the tools and possibilities of our time. This is where my next chapter begins."

Proud raced to silver in the 50m freestyle at the Paris Games, his first Olympic medal.

Aquatics GB said they are "imme

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