Roth accepted an outright assignment to Triple-A Round Rock on Saturday.
Roth was DFA'd last Sunday, and he'll wind up back at Triple-A, where he spent the bulk of the 2016 season. In 28 appearances (23 starts), Roth posted a healthy 2.97 ERA across 145.1 innings. He struggled in his only major league action, allowing 10 hits and six earned runs in a loss to the Red Sox on July 4.