Dunning will start Monday's contest against the Pirates.
The choice seemed to come down to Dunning or Jose Urena and the Rangers have opted for the former. Dunning has been deployed as a swingman this season and this will be his second appearance in a row as a starter after he allowed four runs over five frames last week versus the Red Sox. While Dunning could earn additional turns in the rotation, his spot is tenuous with Max Scherzer (shoulder) and Jacob deGrom (elbow) lurking.