I see that two of the Six nations Rugby games have been postponed, only Wales v Scotland is going ahead.
They are saying that they might not be able to conclude the championship until May.
I say conclude it after Saturday, the result of the match in Cardiff has no bearing on the outcome of the championship, so just void the result and start again next year.
Most of players will be outside of the contracted international window anyway after Sunday, their respective clubs will probably not release them anyway.
Many of the fans would have made other plans or have other commitments.
Sometimes things just happen, and you have to take it on the chin.