If Nani gets in a similar position as Walcott and pulls the same line of shot I guarantee Chesney would not get down quick enough, it's near on impossible unless you start with your legs closed and even then you need to somehow collapse your knees to deflect it away.
It says alot when Fergie doesn't even feel the need to go 4-5-1 vs Arsenal anymore.
At least when Chelsea play poorly they often get a result, difference is Chelsea are spending and rebuilding and Wenger's sat there putting faith in players like Rosicky/Djourou/Jenkinson...
I wouldn't even put Arsenal in the same breath when mentioning the top five unless things change quickly by Wednesday.