Rarely messed up by experts in team events (5,5)

I believe the answer is:

relay races

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

'events' is the definition.
(relay race is a kind of event)

'rarely messed up by experts in team' is the wordplay.
I cannot really see how this works, but
an anagram of 'rarely' is 'relayr' which is present in the answer.
'experts' could be 'aces' (ace is a kind of expert) and 'aces' is located in the answer.
No letters remain.
This may be the basis of clue (or it may be nonsense).

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