Screen first of soccer coaches (6)

I believe the answer is:

strain

'screen' is the definition.
(I've seen this before)

'first of soccer coaches' is the wordplay.
'first of soccer' becomes 's' (1st letter of 'soccer').
'coaches' becomes 'train' (I've seen this before).
's'+'train'='STRAIN'

(Other definitions for strain that I've seen before include "Distinct breed; use a seive" , "Distinct breed (of animal); overexert" , "Drain off" , "In arts (anag)" , "Try too hard" .)

I've seen this clue in The Independent.

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