Diaz (1-1) allowed two runs on one hit and one walk while logging one strikeout over one-third of an inning to take the loss and a blown save Friday versus the Diamondbacks.
Iglesias took a blown save in Friday's 3-2 extra-inning loss to the Yankees, allowing two runs on three hits and one walk while striking out two across two-thirds of an inning.
Riley went 1-for-3 with a walk and a solo homer during Friday's 3-2 extra-inning loss to the Yankees.
Olson went 1-for-4 with a solo home run during Atlanta's 3-2 loss to the Yankees on Friday.
Mahle did not factor into Friday's decision against the Yankees, allowing three hits and two walks while striking out nine across six scoreless innings.
Sasaki allowed two runs on four hits and a walk while striking out five over six innings in a no-decision versus the Diamondbacks on Friday.
Snell (elbow) will return from the injured list to start Tuesday's game against the Royals, Fabian Ardaya of The Athletic reports.
Freeman (hand) will start at first base and bat third Friday against the Diamondbacks.
Harris is absent from the lineup for Friday's game against the Yankees.