The powers that be seem to want us to not have happy retirements don't they.
People are living longer, but at 75 you are much more likely to have health issues that curtail a lot of things you could maybe doing at 65.
I know I have arthritis in my fingers and knees. Not too bad now, but I hate...
If he can't resume then you only need 9 wickets, instead of 10 to complete the innings and get the whole team out.
You can only replace a fielder, not a batsman and if someone does replace someone in the fielding team, they are not allowed to bowl.