Fools bet against grave statistics from the MCG? (7,8)

I believe the answer is:

batting averages

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'fools bet against grave statistics from the mcg?' is the definition.
I can't judge whether this defines the answer.

'fools bet against grave statistics from the mcg?' is the wordplay.
'bet against grave' can be anagrammed to 'BATTING AVERAGES'.
However, I'm not clear how this is indicated.

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I've seen this clue in the Sydney Morning Herald.

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