Here's what Randy Johnson has been up to since he retired from MLB five years ago

Randy Johnson played 22 seasons in MLB, appearing in 618 games and amassing 4,135 1/3 innings. Five years ago Monday, on Jan. 5, 2010, that came to an end.

"There's not a lot more for me to do in this game. It's just a natural progression," Johnson said upon his retirement.

But don't shed too many tears for him -- Johnson's been keeping busy.

Instead of toiling his days away striking out a historical-best 10.6 batters per 9 innings, the lefty has been learning how to ski, hanging out with his mascot doppelganger and working on his professional photographer portfolio -- snapping pictures of everything from exotic animals to nu-metal festivals.

As he gets set for a likely Hall of Fame induction in 2015, though, it's only natural that Johnson would spend some time looking back on his illustrious career. Like that time he was a ghost:

And those times he got to pal around with celebrities:

And also, probably, that time he hit a bird with a fastball:

No matter how he's spending his retirement, we just hope he's grooming that sweet, sweet 'stache.