敗戦 はいせん投手 とうしゅではありませんでした
haisentōshudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 敗戦投手

1. Was not a losing pitcher.; Was not the pitcher of record for the loss.

Past/Perfective
Negative
Polite
Formal Register