In the heat of battle, players have been observed to throw themselves across the court without considering the consequences that such a move might have on anyone in their way.
分析主干：players have been observed to...
不定式to throw...在句中作主语players 的补语;这是observe sb. do sth.结构的被动语态，作宾语补足语的省to 的不定式在被动语态中成了主语补足语，要把to 还原。动名词considering...作介词without 的宾语，介词短语without considering...作throw 的状语。
译文：在比赛的白热化阶段，人们注意到球员从球场的这头狂奔到球场那头，根本就没有考虑到他这样的动作会对阻挡他的其他球员产生什么样的后果。