Ex-Astros pitcher Ken Giles says he's absolutely devastated by Houston's sign-stealing scandal ... and despite having no idea his teammates were cheating, he's willing to return his World Series ring.
Giles -- now a member of the Toronto Blue Jays -- revealed his feelings over the bombshell scandal, saying he was hurt to find out through the commissioner's report.
"It crushed me to learn about the stuff that went on when I was there," Giles said via the Toronto Sun.
"I had no idea. I had no clue whatsoever. I was blindsided by the commissioner's report.