Federer: I will keep asking questions

Andy Murray shows battling spirit to win first round match at European Open

Roger Federer is hoping he can carry the sublime form he showed in the Cincinnati Masters final over to the US Open.

The Swiss Maestro dispatched world number one Novak Djokovic in the final of the Western & Southern Open in straight sets last week.

Federer kept Djokovic guessing every point and used the serve and volley to great effect during the comfortable win.

"That was my plan, to keep asking question after question," the 33-year-old told atpworldtour.com. 

"I'm happy it worked out very well. On the return I was able to mix things up very nicely, and on my serve I was rock solid."

The 17-time grand slam winner arrives at Flushing Meadows not having won there since 2008. Federer lost in straight sets to eventual champion Marin Cilic last year, but is hoping his hyper-aggressive and unpredictable approach will reap rewards next week.

"I'll always mix it up and make it I guess uncomfortable for my opponent," added Federer, who failed to drop a set all week in Cincinnati. 

"I'm not going to play the way they like it.  I'll always come out and make it an athletic match or make it uncomfortable in the sense that they don't know what's coming.

"I can't always do it. Some surfaces allow you to do it better than others, but [in Cincinnati] it worked out well. Let's be honest, I didn't do it on every single second serve, but I was very aggressive…and I am happy to see that actually it’s also a way forward for me, because for quite a long time my career I was very content to chip it and be aggressive with the forehand."

Federer gets his 16th US Open campaign underway against Argentina's Leonardo Meyer in round one. The duo have only met once before, in 2014, with Federer winning by two sets to one.