Seeds Ryan Harrison and Alex de Minaur tumble out in Newport

Shahida Jacobs

Ryan Harrison and Alex de Minaur both suffered opening-round defeats at the Hall of Fame Tennis Championships.

Fifth seed Harrison found himself 6-2, 2-0 down against 2013 Newport champion Nicolas Mahut before he retired hurt.

“Many good memories from here. I really enjoy the tournament,” the Frenchman, who will face Jason Jung next, said after he advanced.

Veteran Ivo Karlovic saved a match point before seeing off Australian seventh seed De Minaur 6-7 (2-7), 7-6 (7-3), 7-5.

“He was playing well. I didn’t really feel the ball [well]. I was missing a lot but I was hanging in there,” the 39-year-old Karlovic said.

“[The match point] was a second serve. I hit it well, and he was not able to return it so I was happy about it.”

The Croat will take on Dudi Sela in the second-round after the Israeli beat Bernard Tomic 6-3, 1-6, 6-2.

Sixth seed Gilles Muller was too good for Marcos Baghdatis as he beat the Cypriot 7-6 (7-5), 6-3 and up next is Marcel Granollers, who overcame Juan Cruz Aragone 7-6 (8-6), 6-0.