There used to be a sixth day in test match cricket as recently as the 1970’s. Also, there was a one day break, usually on a Sunday during a test which generally started on a Thursday, finishing if necessary on a Tuesday. A provision for an extra day is surely the way to go but ffs, they have to stop these back to back tests, it’s not good for the game.There never ever will be a reserve day and the Aussies in Australia it very rare a test match is rained off and why it feels so relentless over there especially when you lose the first 2 test..