Crossword Genius

Match commentator? (4,3)

Ross

I believe the answer is:

best man

I'm a little stuck... Click here to teach me more about this clue!

This might be a double definition.

'match' is the first definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'commentator?' is the second definition.
The definition and answer can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?

Can you help me to learn more?

(Other definitions for best man that I've seen before include "May he win!" , "Bridegroom's friend" , "The groom's assistant at a wedding" , "Groom's primary attendant at wedding" , "Principal groomsman at a wedding" .)

I've seen this clue in The Telegraph and The Sun.
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