McGregor reveals drug fears ahead of world title shot

Conor McGregor’s single greatest fear – maybe his only one as he prepares to take on champion Jose Aldo for the UFC featherweight belt in Las Vegas in July - is that his Brazilian opponent will fail a drug test that results in the fight being cancelled.

The use of illegal substances has been an ongoing issue for the UFC, which is due to introduce tougher and independent out-of-competition testing for its fighters on a year-round basis, and Aldo’s coach Andre Pederneiras believes the sport has reached a tipping point.

“If the UFC wants the best show and the guy is juiced, you will have the best show of your life,” Pederneiras told Portal do Vale Tudo recently, while claiming he was against the use of PEDs.