Unhappy member of university team (4)

I believe the answer is:

blue

I believe this is a double definition.

'unhappy' is the first definition.
(blue can mean sad or miserable)

'member of university team' is the second definition.
(blue can mean an Oxford or Cambridge sportsperson)

(Other definitions for blue that I've seen before include "Dejected" , "Sky-coloured" , "despondent" , "down in the dumps" , "sometimes heard of with little boy" .)

I've seen this clue in The Times and The Irish Independent.

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