Today is Memorial Day. I hope everyone has taken (or will take) a moment to honor the men and women who have died for our freedom.

Pat Tillman (pictured left during a Cardinals game) is probably the most well known American athlete who was killed in action. At age 27, Tillman enlisted in the wake of the Sept. 11 terrorist attacks, choosing to walk away from a 3-year, $3.6 million contract extension with the Cardinals.

However, he's not the only pro athlete to die serving his Country. Over the years, several famous athletes made the ultimate sacrifice for America.

The yahoo! sports blog ThePostGame has put together a list of some of the more notable athletes who lost their lives in service. Click here to check it out. Happy Memorial Day everybody. God bless all the servicemen and women who have sacrificed for our freedom.