ringside       
noun [ S ] uk/ˈrɪŋ.saɪd/ us/ˈrɪŋ.saɪd/
 (比赛场、表演的)台边区
the edge of an area where people compete or perform, especially a boxing ring
  Ringside seats at the fight sold for as much as $12,000. 拳击赛台边的座位可以卖到1万2千美元。 
 A ringside doctor tends to any cuts between rounds. 台边的一位医生在比赛间隙处理伤口。 
 Idiom   
have a ringside seatidiom  处于一个有利于观察的位置
to be in a position where you can see or observe something very well
  He had a ringside seat for the dramas of the Clinton years. 对克林顿时期的戏剧化事件他可以就近观察。