10 infighting

1 (in boxing) fighting in which the opponents are very close to or holding on to each other (拳击)接近战.
2 (fig infml 比喻, 口) fierce competition between rivals (eg involving intrigue, betrayal, etc) 对手间的激烈竞争(如事涉阴谋、 出卖等)
    I gather a lot of political infighting went on before he got the top job. 我看他一定经历了政治上诸多明争暗斗才获此高位.