LeBlanc announced his retirement from the MLB on Saturday, Jon Morosi of MLB Network reports.

LeBlanc (elbow) will be shut down for the remainder of the 2021 campaign, Jeff Jones of the Belleville News-Democrat reports.

LeBlanc (elbow) saw a bullpen session scheduled for Saturday pushed back in order to ensure he can handle the intensity, the team's official site reports.

LeBlanc (elbow) hasn't recovered well from Tuesday's bullpen session and may not be able to return this season, Jeff Jones of the Belleville News-Democrat reports.

LeBlanc (elbow) threw off flat ground Thursday and Saturday, the team's official site reports.

LeBlanc (elbow) will miss more than the minimum 10 days on the injured list, Jeff Jones of the Belleville News-Democrat reports.

LeBlanc (elbow) will return to St. Louis on Friday and undergo an MRI after he exited his start after the second inning of Thursday's 7-6 win over the Pirates, Derrick Goold of the St. Louis Post-Dispatch reports.

LeBlanc was pulled from his start Thursday against the Pirates due to elbow pain, Katie Woo of The Athletic reports.

LeBlanc didn't factor into the decision in Friday's 6-5 loss to the Reds, allowing three runs on eight hits and a walk over four innings. He struck out five.

LeBlanc allowed a run on five hits and a walk while striking out three over five innings Sunday against the Giants. He did not factor into the decision.