Slam Music Tour Dates: Juan Martin del Potro Comeback Slam Ends .

MELBOURNE, Australia (AP) - The lowest man to win a Grand Slam - who is not named Rafa or Roger - was eliminated from the Australian Open on Thursday.

Juan Martin del Potro, winner of the 2009 U.S. Open and the rising star of that season, spent most of 2010 recovering from or on his right wrist.

The 22-year-old Argentine returned to Melbourne for his first Grand Slam event in a year, but he has not returned to top form.

Juan Martin del Potro Comeback Slam Ends With Marcos Baghdatis in .

MELBOURNE, Australia (AP) - The last man to win a Grand Slam - who is not named Rafa or Roger - was eliminated from the Australian Open on Thursday.

Juan Martin del Potro, winner of the 2009 U.S. Open and the rising star of that season, spent most of 2010 recovering from or on his right wrist.

The 22-year-old Argentine returned to Melbourne for his first Grand Slam event in a year, but he has not returned to top form.

Fed in prime condition

Roger Federer insists he is in top condition as he bids for a fifth Australian Open championship at Melbourne Park this week.

The 16-time Grand Slam champion enjoyed a brilliant run of form towards the end of last year, culminating with a virtuoso display in the ATP World Tour Finals where he defeated world No.1 Rafael Nadal in the final.