"She was a born scorer, a 'clutch player' -- it was almost impossible to block her shots. She was always on TV."
Ela era uma marcadora (de pontos) nata, uma jogadora decisiva, era quase impossível parar seus saques. Ela estava sempre na mídia.
(Decisiva aqui, significa que ela se sobressai em situações difíceis e vira a 'dona do jogo')
A member of a sports team who performs well in the clutch.
In the clutch:
helpful during a difficult situation or period of time. Something that "came through in the clutch", that is, came through in a difficult or trying time.