Tolong jelaskan mengenai Nirbobol

Dalam olah raga tim, suatu nirbobol (AS: shutout) atau clean sheet (Britania) adalah sebuah laga ketika tim yang kalah gagal mencetak satu poin pun. Meski mungkin terjadi dalam kebanyakan cabang olah raga paling tenar, hal ini nyaris tak mungkin terjadi dalam beberapa cabang, misalnya bola basket.

Shutouts are usually seen as a result of effective defensive play even though a weak opposing offense may be as much to blame. Some sports credit individual players, particularly goalkeepers and starting pitchers, with shutouts and keep track of them as statistics; others do not.