Tackler (noun)

A player in American football, rugby, or association football who tries to tackle an opposing player who has the ball.

Origin:

Late 19th century: from tackle + -er.

Examples:

1. The tackler made a fierce attempt to bring down the running back but was unsuccessful.
2. The tackler was praised for his speed and agility on the field.
3. The opposing team's best tackler was assigned to stop the star player of the other team.
4. The tackler was injured during the game and had to be taken out.
5. The tackler was praised for his tenacity and determination in bringing down the opponent.