Dominant del Potro

Juan Martin del Potro announced himself as a medal contender with a dominant 6-4, 6-1 victory over Croation Ivan Dodig.  While not a difficult opening match for del Potro, he was efficient.  All while Federer was again inefficient and mighty Berdych was stunned by a little known Belgian outside the top 50.  Dodig contributed 24 unforced errors, but del Potro made only ten and his serve was huge.  He will present huge problems for anyone he faces later in the draw.  del Potro will face Andreas Seppi of Italy next in what could turn out to be one of the best matches of the tournament.