Athletics could benefit from taking a leaf out of cycling's book when it comes to doping, according to Tour de France winner Chris Froome.
Tour de France winner Chris Froome says athletics could learn plenty from cycling when it comes to combatting doping.
Athletics has been hit by two scandals in recent months - firstly when accusations, denied by both men, were levelled at coach Alberto Salazar and distance runner Galen Rupp in a BBC documentary, and secondly when German broadcaster ARD and a subsequent report from British newspaper The Sunday Times claimed widespread doping was prevalent in the sport.
And Froome believes more could be done to keep athletics clean, with anti-doping spending said to be a quarter of that paid out by Union Cycliste International (UCI).
"From what I understand, the testing hasn't been at the level that it is in cycling," he told BBC Sport.
"It is going to have to invest a lot more heavily in anti-doping. That would be a step in the right direction.
"I believe some things have changed quite substantially [for cycling] since the dark ages of 10 to 15 years ago when the sport was really dirty.
"The testing has really evolved and the UCI has now implemented 24-hour testing. I have every confidence that the system now really works."
Despite ultimately winning the Tour, Froome endured a difficult few weeks, with some accusing the Team Sky rider of using performance-enhancing drugs.
The Kenya-born 30-year-old, who denies those allegations, even claimed to have had urine thrown in his face by a spectator at one stage.
Froome has now promised to undergo independent physiological tests and says he could also go through the VO2 Max test, which measures the maximum volume of oxygen an athlete can use.
"It's [further testing] something I wanted to do from the start of the season, even before all this came up during the Tour," he added.
"The physiological testing could even help me understand what makes me who I am and what it is about me that allows me to make the efforts I do."