Already accused of buckling under the pressure, Formula One leader Jenson Button has the added strain of racing against a fired-up Giancarlo Fisichella at Monza Sunday. Champions Ferrari made one of Fisichella's dreams come true when it drafted in the Roman as a replacement for compatriot Luca Badoer, himself standing in for injured Brazilian Felipe Massa, last week. Fisichella, 36, was not even born when an Italian driver last won his home Grand Prix at Monza but he has the chance of realising another lifelong ambition now. He will have the crowd behind him, a burning desire to show that he still has what it takes after all these years and a car equipped with the KERS energy recovery system that Button's Brawn lacks. “It will be an incredible weekend, with lots of pressure but it's a pressure that will give me a push forward,” Fisichella told Italy's Sky Sports television. The last Italian driver to win a Grand Prix at Monza was Ludovico Scarfiotti with Ferrari in 1966, although Italian-born American Mario Andretti triumphed with Lotus in 1977. Fisichella finished third with Renault in 2005. Whatever happens in the last European Grand Prix of the season, Button will head for Singapore as championship leader. He has a 16-point lead over Brazilian teammate Rubens Barrichello but the air of confidence is starting to crack. After winning six of the first seven races, the Briton has taken just 11 points from his last five races compared to Barrichello's 21. Button's problem is that there are now an increasing number of rivals, including Fisichella, capable of keeping him off the podium. Two of the last three races have been won by KERS cars and the system, offering a brief boost of power at the push of a button, is likely to be a particular advantage at high-speed Monza. Kimi Raikkonen, winner in Belgium for Ferrari, will again be a favourite although he has yet to win in Italy while Red Bull's two title contenders Sebastian Vettel and Mark Webber are both hungrier than ever to close the gap on Button. Vettel won from pole position at Monza last year with Toro Rosso in a wet race. Force India, with Italian Vitantonio Liuzzi taking Fisichella's place, expects Monza to suit their car just as much as Spa – where Fisichella finished second from pole position for that team's first points. BMW-Sauber could also be contenders after encouraging performances at Spa with Poland's Robert Kubica fourth and Germany's Nick Heidfeld fifth.