Toronto Blue Jays closer Roberto Osuna is one of the youngest players in MLB, but the 21-year-old is also one of the best relief pitchers in the game. Osuna has pitched 143.2 innings over his two MLB seasons with the Jays, striking out 157 batters and allowing just 103 hits during that span. His career era is an impressive 2.63 and he plans on lowering that even more this season.

On Monday, Osuna shared a video of him putting in some crazy offseason workouts. If youโ€™re wondering just how crazy, have a look for yourself.
 

There is easily over 1,000 lbs on that bar, as each side contains 12 45-pound plates. Aside from that, you have to counter in the weight of the bar and the human being sitting on top of the machine while he works out.   

The youngsterโ€™s fastball averages around 97mph, so weโ€™re expecting to see it get a little quicker this year after these insane James Harrison-like workouts.

(H/T Instagram/robertosuna54)