Here's a list of famous athletes/coaches that are 50 or turning 50 in 2013:

- 49ers coach Jim Harbaugh

- Ex-baseball slugger Mark McGwire

- Ex-NBA great Hakeem Olajuwon

- Ex-NBA great Karl Malone

- Ex-NBA great Charles Barkley

When are their Sports Illustrated 50th birthday cover issues scheduled?

Oh, and some guy named Jordan is turning 50 too.

- Mark Podolski | @MPodo