No specialists in a 50-50 game (3-8)

I believe the answer is:

all-rounders

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'no specialists' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'a 50-50 game' is the wordplay.
'd0' becomes 'l' (Roman numeral).
'd0' becomes 'l' (Roman numeral).
'game' becomes 'rounders' (rounders is a kind of game).
'a'+'l'+'l'+'rounders'='ALL-ROUNDERS'

'in' acts as a link.

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