Ringside

wiktionary

ref

ring +‎  -side

etymonline

ref

ringside (n.)

also ring-side, "area immediately around a fight ring or other contest arena," 1855, earlier as an adjective (1817), from ring (n.1) in the "space for fighting" sense + side (n.). Ringside seat, one close to the action, is by 1900; figurative use by 1940.