Aaron Feld, the Oregon Ducks' energetic and entertaining strength coach, joined The Dan Patrick Show on Monday to discuss his 45-day "Fill The Sleeves Challenge."

So what inspired the 45-day challenge?

"I tell my guys all the time: mental toughness isn't surviving one workout, it's maintaining the highest level of focus, dedication and performance through an entire competitive calendar. So the 45-day challenge is about doing something every day. It doesn't have to be a lot, it just have to be consistent commitment to doing something every day to help you reach your goals to be the best version of you."

And what if you don't have sleeves to fill?

"If you don't have sleeves than it's unending, you gotta keep growing no matter what. There's no endpoint."

How does he motivate his players?

"People talk about motivation and strength coaches being motivators -- I tell my guys I can coach everything but effort. Now, I'm going to coach effort because you have to, but if you show up to the weight room and you don't want it then weight room is going to win every time. So you gotta bring your lunchpail with you, you gotta bring your attitude -- the right attitude -- and the desire to reach your goals and to go hard every day. ... If you're unwilling to give the effort, then there's nothing I can do to help you."

Check out the full interview with Feld in the video at the top.