Melvin Gordon, who grew up idolizing Adrian Peterson, is working with the veteran running back on ball security this offseason.
Gordon has joined Peterson for offseason workouts in Houston.
"I talked to Adrian about it, and he said, 'The biggest thing about the lack of ball security is, it's a mental thing,'" Gordon said. "You can do a lot of drills, but you can still go out there and mess up if you're not mentally focused on it. It's [having that reminder of], 'Someone's there. Someone's always there [trying to take it].'"
Peterson fumbled seven times last season, losing three, after not losing a fumble in 2014.
Gordon fumbled six times as a rookie.