In the same season Simon Webster broke his leg and not long after Peter Duffield suffered a similar fate. On the plus side Bob Booker came in for Webster! Webster and Duffield went onto play elsewhere, but Smith never played again, of course, very sad. Alan Roberts was also another but he'd left by then to join Lincoln.
As for JOC, it obviously is never good when there's no return date and it just goes quiet. He'll have expert advice and the best medical care that you and I can only dream of, but then again even then that may not be enough.