Juventus manager Massimo Allegri has warned his players to remain "focused" as they look to overcome Manchester City in the Champions League.

Last season's beaten finalists have made a slow start to their domestic campaign, having failed to win any of their opening three league fixtures.

Despite this, Juventus are still expected to pose a real threat in Tuesday night's tie at the Etihad Stadium, which Allegri admits will provide a tough test for his group of players.

"City are one of the Champions League favourites," he told reporters. "Tomorrow will be the first of six group matches and our aim is to get through.

"We'll need to put an intense display, show plenty of courage and also be at the races from a technical standpoint.

"The team's given everything in the first three games, we've lacked goals and also been a little unlucky. Tomorrow we'll require a focused display, aware that we're up against one of the best teams in Europe."

Juventus were edged out 3-1 by Barcelona in last season's Berlin final.