Lyles said the pitch that knocked his counterpart out of the game yesterday was unintentional and got away from him.
Jordan Lyles explains what happened on pitch that hit Ryan Vogelsong in head - The Denver Post
Patrick Saunders talked with Rockies pitcher Jordan Lyles about his pitch in the second inning that hit Pirates pitcher Ryan Vogelsong in the face. Lyles said he was simple trying to go up and in with the pitch but that it just got away from him.
Also in Saunders' article is some backstory on how the Rockies and Pirates wound up playing yesterday, an idea the Rockies were against initially, but given the final say as the home team, the Pirates chose to go ahead with.