<p>Rafael Nadal lost his opening match at the ATP Cincinnati Masters on Wednesday, falling to Croatia's Borna Coric in a second-round match at the US Open tuneup.</p>.<p>Coric defeated Nadal 7-6 (11/9), 4-6, 6-3 in the 36-year-old Spaniard's first match since suffering an abdominal injury in a Wimbledon quarter-final victory and withdrawing before the semi-finals.</p>.<p>With the loss, 22-time Grand Slam winner Nadal cannot overtake top-ranked Daniil Medvedev for the world number one spot and a top seeding at the US Open.</p>
<p>Rafael Nadal lost his opening match at the ATP Cincinnati Masters on Wednesday, falling to Croatia's Borna Coric in a second-round match at the US Open tuneup.</p>.<p>Coric defeated Nadal 7-6 (11/9), 4-6, 6-3 in the 36-year-old Spaniard's first match since suffering an abdominal injury in a Wimbledon quarter-final victory and withdrawing before the semi-finals.</p>.<p>With the loss, 22-time Grand Slam winner Nadal cannot overtake top-ranked Daniil Medvedev for the world number one spot and a top seeding at the US Open.</p>