Ritchie was scratched from his scheduled start with Triple-A Gwinnett and is expected to be called up to start for Atlanta in Sunday's home game against Washington, Grant McAuley of the Marietta Daily Journal reports.
Reynaldo Lopez was scratched from Saturday's start with Atlanta due to left knee inflammation, prompting the team to move Martin Perez up a day in the pitching schedule. Ritchie looks poised to end up filling in for Perez on Sunday for what will be his 14th appearance and eighth start with Atlanta. Ritchie owns a 4.50 ERA, 1.41 WHIP and 49:33 K:BB over 54 innings during his first big-league season.