WASHINGTON, DC - FEBRUARY 28:  American swimmer and Olympic gold medalist Michael Phelps testifies during a hearing before the Oversight and Investigations Subcommittee of House Energy and Commerce Committee February 28, 2017 on Capitol Hill in Washington, DC. The subcommittee held a hearing on "Ways to Improve and Strengthen the International Anti-Doping System."  (Photo by Alex Wong/Getty Images)
Michael Phelps: Doping is too prevalent
02:51 - Source: CNN

Story highlights

Michael Phelps calls for clampdown on dopers

Most decorated Olympian not sure he competed against clean field

Phelps rules out a return for Tokyo 2020

CNN  — 

The most decorated Olympian of all time thinks it is a “joke” athletes who were banned for doping could still compete against him in major finals.

Michael Phelps, who won a record 23 gold medals in an astonishing career, wants swimmers who use banned substances to be thrown out of the sport for good.

The 31-year-old recently told a US congressional hearing on improving anti-doping measures “the time to act is now.” And he reiterated that stance when speaking to CNN’s Coy Wire.

READ: Phelps ‘never competed against clean international field’

“There were people who had tested positive not once but twice who were able to compete and that’s a joke,” he said.

“Especially as a father now, with Boomer growing up – I don’t ever want him to see that world.

“It’s not what sports is all about and hopefully someone can change that.”

Phelps also confirmed he would not be coming out of retirement, ruling out a return to the sport in time for the Tokyo Olympics in 2020.