Coco Crisp stole a base on Sunday, his 20th swipe of the season.
Crisp also has 22 home runs, giving him the first 20-20 season of his career as he approaches age 34.
He called the feat "quite shocking."
"I'm having a lot of fun," Crisp said. "The homers – that's when I get my hands shaken. I enjoy it more when others hit the home runs, although I don't want (his own homers) to stop."