After only six months, Covid-19 is threatening to permanently change our way of life. While all its public health, family, sociological and financial implications are obvious, we now may only be beginning to recognise the extent to which it also threatens to entirely alter not only how we used to work but how we play. The potential existential crisis that professional sport faces is only beginning to be understood. Back in February, many regarded the emerging pandemic as a dangerous interruption to our normal lives, but one that would be temporary. The advice then was low-key and reassuring: stay at…