Lyles will start the second game of Saturday's doubleheader against the Dodgers.
Lyles will make his first big-league start in more than 15 months, with Jhoulys Chacin moving back to start Sunday's series finale. The 26-year-old allowed just one homer in 20 innings with Triple-A El Paso after giving up 11 in 46.2 innings with the Rockies, but even so, his ratios were still unsightly. He's not a recommended play in any format.