Jenson Button has said that he is expecting possibly the most exciting Monaco Grand Prix for some time as the tightly-matched Formula One field and improved overtaking opportunities should spice up the action in the Principality.

Speaking in the wake of a largely processional Spanish round, the championship leader insisted that the Monaco qualifying battle could be one of the highlights of the season, with the likes of Sebastian Vettel, Mark Webber and Jarno Trulli vying for pole position with himself and Brawn GP team-mate Rubens Barrichello, and other 'wild cards' - including Monaco 'specialist' Lewis Hamilton, Fernando Alonso and Felipe Massa - given the opportunity to seize a rare frontrunning spot on the tightest track of the year.

"It's going to be a tough weekend for sure, but I go there full of confidence that I can have a good weekend," Button said after securing his fourth win from five races in 2009, "However, it's not going to be a boring Monaco Grand Prix. I think there's going to be a lot of very competitive people, and I think you will see a very exciting qualifying and the race could be interesting.

"I think you need to be a bit more aggressive in Monaco [although], obviously, you've got the barriers as your limiting factor. As long as you stay off them you're fine, but you can't pussyfoot round - and that's why I think Rubens has always been pretty spectacular around Monaco, and Mark also."

Button admitted that his own style has not always been compatible with the Principality - where he suffered a massive accident in 2003 - but says that success in Barcelona, another circuit not to have been too kind to him in the past, has buoyed his confidence.

"Monaco is very different - it is 'chuck all the downforce on and don't worry about the drag'," he reflected, "It is a circuit which I think is very similar to Barcelona, and I think I have always been a little bit too cautious around circuits like this, so I have to change my style a bit to make it work.

"Monaco is a circuit where I need to get the best out of the car and maybe change my style a bit from the first four races, but I am looking forward to it. It is going to be a big challenge and that is what we look forward to, the challenge."