Bill Valentine
"Satchel Paiges Last ML Game"
"Home Plate Umpire - 9/25/65"

I sent a request to Bill Valentine asking him to tell the story on a baseball about his perspective on Satchel Paige's last major league game and this is what I got:

"By the time he pitches this game he had nothing left. He was changing speeds and moving the ball on the corner of home plate"
"He [was] way past his prime and being used to draw fans. He needed the money"

Here is an article about Satchel's final game in the Major Leagues