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International Captain
On the 'its Michael Clarke" logic don't discount batting on just because everyone is expecting him not to.If Day 3 is the best day to bat then that hardly strengthens the case for an immediate declaration - if you've got to bat for a bit more in the game, there's an argument to be made to bat when it's easiest and deny the opposition a little more time on the pitch when it's at its best.
Undecided personally, but I do reckon he'll declare straight away regardless on the "it's Michael Clarke" logic.
The old bat one over and declare just to **** with the openers gambit is not out of the running either.