The Miami Marlins reported four new cases of coronavirus in their latest round of testing, according to multiple media reports.
The four positives increase the total cases affecting the team in the past five days to 17 players and personnel, reported Jeff Passan of ESPN.
The team on Monday confirmed 13 cases -- affecting 11 players and two coaches. Among the players recently added to the injured list were pitcher Jose Urena, first baseman Garrett Cooper, outfielder Harold Ramirez and catcher Jorge Alfaro.
MLB Commissioner Rob Manfred said on Monday night that the Marlins would not play on Tuesday after their Monday home opener in hard-hit Florida was postponed. Two Yankees-Phillies games in Philadelphia -- where the Marlins opened their season -- were also called off.
Manfred also said MLB's owners had not discussed cancelling the season at any time during a regularly scheduled Monday conference call, but he didn't rule out the possibility.
"A team losing a number of players that rendered it completely noncompetitive would be an issue that we would have to address and have to think about making a change," he said. "Whether that was shutting down a part of the season, the whole season, that depends on the circumstances. Same thing with respect to leaguewide. You get to a certain point leaguewide where it does become a health threat, and we certainly would shut down at that point."
The Marlins were next scheduled to play a two-game series in Baltimore beginning Wednesday night.
Nine games were played on Monday night, without any additional known reports of positive tests.