The photographs take baseball fans back 50 years, illustrating the grace and greatness of Roberto Clemente.

In our third installment of, "Trip on a Tank", we traveled to Pittsburgh to check out the Roberto Clemente Museum.

You will  hear from former Pirates catcher Manny Sanguillen and Roberto Clemente Junior. 

I can remember in Grade School, my Dad taking me to Forbes Field, waiting outside the right field wall for Clemente to throw batting practice baseballs to young fans. 

My greatest memory is watching him play live at Three Rivers Stadium, during game five of the 1971 World Series.

What do you remember about Roberto and should his number 21 be retired by Major League Baseball?