Saturday's game between the Reds and Pirates has been postponed after a Cincinnati player tested positive for the coronavirus on Friday, a source told ESPN's Buster Olney.

In addition, Sunday's game between the teams is exceedingly likely to be postponed, sources told ESPN's Jeff Passan.

The teams were informed of the positive test after Friday's game in Cincinnati. The Athletic first reported that a Reds player had tested positive.

The Reds have started the contact-tracing process to potentially isolate players who came into contact with the infected player. The team is likely to undergo increased testing beyond the standard every-other-day saliva test.

The Reds and Pirates could potentially play a doubleheader on Monday, when both have an off-day. They have two more series in which they can make up lost games, too.

The St. Louis Cardinals, who have not played since July 29, are returning to the field against the Chicago White Sox on Saturday.

Outside of St. Louis, Major League Baseball had reported no positive tests in the previous two weeks.