he will do one of two things meaning in Chinese

他将会选择其一

If one of your defenders ( mostly not so great at passing ) has the ball and finds that all his advanced team mates are rushing headlong up the pitch while at the same time he is being pressured by opposition players , he will do one of two things
如果你的一名后卫（通常传球技术不是很好）得球，发现前方的队友都轻率得冲向前方同时他却被对手队员施压，他只能在下面的选择中二选一。