Diego Schwartzman struggled to explain his first-round defeat against Robin Haase.
An upset looked on the cards early on as Schwartzman of Argentina won the opening set 6-2 on Court 5. Haase bounced back to win the next two 6-2, 6-3 before Schwartzman rediscovered his rhythm to win the fourth 6-2. But he was unable to see the match as Haase won an epic contest 7-5 in the fifth.
"It was a tough match,” said Schwartzman. “I started strong and aggressive. But then I don’t know what happened.
"He played well and I made some unforced errors and lost the second and third set. I rallied in the fourth and he took the fifth.