Follow tennis dude, defying odds (5)

I believe the answer is:

ensue

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'follow' is the definition.
(ensue can mean to follow or happen as a result)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for ensue that I've seen before include "Follow as a consequence" , "Transpire" , "Happen or come about as consequence" , "Happen afterwards as a result" , "Come about, result in" .)

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

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