Matthews is scheduled to start Monday's game against the Padres at Petco Park.
The Twins called up both Matthews and Louie Varland from Triple-A St. Paul last week to make starts, but after Varland was sent back to the minors following his outing, Matthews will stick around as the fifth member of the big-league rotation. After producing an eye-popping 114:7 K:BB in 97 innings across three stops in the minors this season prior to his call-up, Matthews continued to exhibit sharp control in his MLB debut last Tuesday, striking out five and giving up two earned runs on five hits and no walks over five innings en route to notching a win over the Royals. Matthews tentatively lines up for two starts during the upcoming week, with his second turn set to come next Sunday at home versus the Cardinals.