The Mets recalled Megill from Triple-A Syracuse ahead of his start Saturday versus Atlanta.
With Christian Scott set to miss some time due to an elbow injury, Megill will now return to the majors in order to fill the opening in New York's rotation. The 28-year-old allowed 12 earned runs in 13.1 innings across his last three starts in the big leagues, but he has improved since moving to Triple-A (4.05 ERA in 13.1 IP) and will match up with an Atlanta offense that ranks 21st in MLB with 428 runs scored on the year. Kodai Senga (calf) was placed on the 15-day injured list.