Suero was optioned to Triple-A Rochester on Tuesday, Dan Kolko of MASN Sports reports.
Suero's month of July was disastrous, as the right-hander allowed 11 earned runs on 13 hits across 10.2 innings. Things didn't get better to begin August, with the 29-year-old allowing five earned runs across his first two appearances of the month. Now holding a subpar 6.29 ERA on the campaign, Suero will look to right the ship in Rochester in hopes of returning to the big leagues before too long.