Johnny Manziel says NFL players reported being at a remote location in South America to avoid drug tests until a U.S. sporting-event appearance exposed the loophole “There was a really off-the-map place in South America that you could change your location to where the NFL couldn’t get to with their drug testers.” “So probably, 20% of the guys in the league in the offseason would do their offseason training down here. That is until you pull up at a sporting event in the U.S. while you’re supposed to be somewhere else out of the country.”