The Blues will take another step towards the title if they can beat United at Old Trafford, and were actually the last team to defeat the Red Devils in the Premier League all the way back in October.
With 17 goals to his name this season, Ibrahimovic is still a top striker at 35, and Conte has been focused on minimising his threat.
"I think now, Zlatan is at the top of his form in his career," Conte said. "I think he's a great player now, a top player. Not only a finisher, but he plays for the team.
"It's good to have this type of player because it's very good to play for the team. It's great. For me, he's one of the best players in the world, Zlatan.
"We must have good defensive organisation, and we must pay attention because, when he attacks the box, he's very dangerous.
"Also when he receives the ball, he's dangerous. He's a dangerous player. For this reason, I think my players must pay great attention and great concentration tomorrow to stop him, and not only one player, but the team."