Sir Alex is aware of the threat Tottenham will pose to United\'s title aspirations in Sunday\'s big game at White Hart Lane. Third-placed Spurs may be reeling from a 5-2 defeat to Arsenal in the North London derby but Louis Saha opened the scoring to register his third goal in three Premier League appearances for his new club. Saha moved from Everton ahead of the transfer deadline last month and will be keen to continue his fine start and upset his former club\'s championship challenge. However, it\'s clear that Harry Redknapp\'s side have quality running right through the squad. \"I don’t know the circumstances behind Louis Saha’s transfer but Everton were happy to let him go,\" he told Inside United. \"And then he goes to Spurs and scores two goals [against Newcastle]. That’s typical of Louis. He’s got tremendous talent, he just doesn’t play enough. \"He is a handful, no doubt about that. He’s got two great feet, he’s quick, he’s got a good spring in the air. There’s no doubt he is a handful. They’ve got a fantastic squad, and a goal threat throughout the team. Gareth Bale contributes, Rafael van der Vaart, [Jermain] Defoe, [Emmanuel] Adebayor. They’ve got goals in their team.\"