Urena will start Sunday against the Mets, Clark Spencer of the Miami Herald reports.
With Edinson Volquez (thumb) on the DL, Urena will be afforded his first starting opportunity of the season. He has fared well in six relief appearances so far this year, allowing just four runs in 15.1 innings, but he struggled in a starting role last season. The right-hander threw a season-high 87 pitches on April 28.