Third baseman Ke’Bryan Hayes, one of the Pirates’ top-ranked prospects, has not been in summer camp at all, despite being named to the roster that would prepare for the 2020 season at PNC Park.

On Sunday, the reason for that was made clear.

Manager Derek Shelton said in a Zoom call that Hayes tested positive for COVID-19 and recently gave the Pirates his consent to disclose that information. HIPAA laws prevent Major League Baseball teams from saying a player or staff member tested positive for coronavirus without that person’s consent.

Hayes’ confirmed positive now makes four Pirates who have tested positive and given their consent to have that made public, as Hayes joined right fielder Gregory Polanco, right-handed reliever Blake Cederlind and outfielder Socrates Brito.

Brito, so far, is the only player who has returned to action.