ringside
noun /ˈrɪŋsaɪd/
  /ˈrɪŋsaɪd/
 [uncountable]- the area closest to the space in which a boxing match or circus takes place
- According to law, a doctor must be present at the ringside.
 - a ringside seat
 
Oxford Collocations DictionaryRingside is used before these nouns:- seat