Major League Baseball has suspended the Miami Marlins’ season through Sunday, after an outbreak of coronavirus that infected half the Marlin’s team.

Infectious disease expert Dr. Anthony Fauci said the season could be in jeopardy.

However, the MLB came up with a patchwork schedule for the rest of this week and said that among more than 6,400 tests conducted since Friday, there were no new positives among on-field personnel from any team other than the Marlins.

In a statement, MLB said it wanted to allow the Marlins time to focus on providing care for their players and plan for a resumption of play early next week. MLB also postponed the three remaining games in this week’s Phillies-New York Yankees series.

The Marlins remained stranded in Philadelphia, where they played last weekend. The Phillies-Yankees games through Thursday were postponed “out of an abundance of caution,” MLB said, although no Phillies players have tested positive.

The Marlins received positive test results for four additional players, bringing their total to 15, a person familiar with the situation told The Associated Press.  Nine players on the 30-man roster, two taxi squad players and two staff members tested positive earlier.

The NBA and NHL are resuming their seasons in bubble environments. The NFL has opted not to create a bubble environment as training camps open this week.