He said: "Tim practised with Canas last week and knows exactly how he is striking the ball and you don't beat Augustin Calleri without being in good form. This is going to be a very difficult match, but Tim is confident."
Andre Agassi's bid for a fifth title continued as he hammered Thomas Enqvist 6-0, 6-3, 6-3. He will next meet Paradorn Srichaphan, who knocked out former French Open champion Gustavo Kuerten 6-3, 7-5, 6-4.
Andy Roddick destroyed fellow-American Taylor Dent 6-2, 6-0, 6-2 in 72 minutes and Marat Safin beat Todd Martin in five sets.
Meanwhile, Frenchman Fabrice Santoro was fined just over £800 for spitting towards a line judge who called him for a foot fault during his defeat by Mark Philippoussis.