Jon "Boog" Sciambi is an American sportscaster for ESPN and the Marquee Sports Network, and has been the everyday play-by-play announcer for the Chicago Cubs TV broadcasts on Marquee since 2021. He has worked extensively as a baseball play-by-play announcer, calling games for ESPN television and on ESPN Radio. Sciambi's nickname, "Boog," was given to him owing to his physical resemblance to former major league player Boog Powell.

Marquee Sports Network is a regional sports network operated by Sinclair Broadcast Group and the Chicago Cubs, launched on February 22, 2020. It is devoted exclusively to Cubs baseball, replacing a trio of channels as the exclusive broadcaster of Cubs games not shown on national TV.