To tackled means to grab and try to stop someone from moving, usually in a game like football.
Tackling can be rough, but it's an important part of the game.
Examples:
He tackled the other player and they both fell down.
The big player tackled the little player.
She tackled the running player and they both fell.
The cat tackled the toy and it went flying!
The superhero tackled the villain and saved the day.
The dog tackled the ball and ran away with it.