Bristo was reassigned Wednesday to the minor-league side of Rays camp.
Bristo joined the Rays on a minor-league contract this winter after posting a rather underwhelming 4.56 ERA, 1.56 WHIP and 64:31 K:BB over 53.1 innings last summer for Triple-A Scranton Wilkes-Barre in the Yankees organization. He is 28 years old and has yet to appear in a game at the MLB level.