knocked out in his first match,he has never been the same since.请_英语解答

knocked out in his first match,he has never been the same since.请翻译下,since是指什么?

人气：119 ℃　时间：2020-07-15 09:05:32

解答

自从在第一场比赛中被打败后,他就没有了昔日的……,（人变了）.