先发

to take preemptive action / (sports) to be in the starting lineup / (of a baseball pitcher) to be the starting pitcher

early / prior / former / in advance / first

to send out / to show (one's feeling) / to issue / to develop / to make a bundle of money / classifier for gunshots (rounds)

hair / Taiwan pr. [fa3]

to gain the initiative by striking first (idiom); to preempt / to anticipate / preemptive

(baseball) starting pitcher