Abdominal injury sees Nadal withdraw from event – CNNDr Angel Ruiz Cottoro, medical services chief for the Spanish Tennis Federation, revealed the world number two has suffered an acute rupture of his right abdominal muscle, which was confirmed by ultrasound, according to a statement on the tournament …Del Potro Looks Forward to London and the ATP Masters Cup – Bleacherreport.comJuan Martin Del Potros shock US Open triumph last week made him the 5th man to qualify for this years ATP Masters Cup