The 48-year-old outfielder has won two World Series titles with the Boston Red Sox.
Several Miami Marlins players have tested positive for coronavirus.
Masahiro Tanaka was rushed to a local hospital, but is awake and alert.
Money is the big issue, with a potential 50 percent pay cut.
But in the post-coronavirus era, no fans will be allowed to attend games.
The club hopes to recruit elite Major League prospects for the upcoming season.
Up to 1000 spectators are allowed inside the stadium for matches.
The 21-year-old relief pitcher became the first Tuatara player to win a post-season award.
The American will oversee the Aussie Baseball League side in 2020/21.