Fifteen minor league baseball teams have filed a lawsuit alleging breach of contract by insurance providers after being denied claims for business-interruption insurance due to the coronavirus pandemic.Major League Baseball announced Monday that it will attempt to play a 60-game regular season, but its minor league clubs — many under threat of losing affiliations amid negotiations with MLB — are unlikely to play until at least 2021.Minor league franchises said in the suit filed Tuesday that even though they continue to pay yearly premiums to insurance providers for business-interruption insurance, they have been denied coverage after Baseball Commissioner Rob Manfred indefinitely suspended their seasons in March.Minor league teams are.