Not only is Mr. Federer a possible quarterfinal opponent .
He could face either Denis Istomin or Dmitry Tursunov ( 32 ) in the 3 round and then Alejandro Falla and FeFe Lopez ( 19 ) in the 4 round .
Not only is Mr. Federer a possible quarterfinal opponent but he could face either Denis Istomin or Dmitry Tursunov ( 32 ) in the 3 round and then Alejandro Falla and FeFe Lopez ( 19 ) in the 4 round .