noun
sweeper (soccer); libero (soccer)
In soccer, a defensive player who operates behind the main defensive line, sweeping up loose balls and initiating attacks. The term 'libero' is also used in English soccer contexts.
from Italian
彼はチームのリベロとして最終ラインを統率している。
He leads the last line of defense as the team's sweeper.
noun
libero (volleyball)
In volleyball, a specialized defensive player who wears a different colored jersey and has restrictions on attacking and setting. The libero cannot serve, block, or attempt to block.
リベロは後衛でレシーブを専門に行う。
The libero specializes in receiving in the back row.