Laura Robson remains positive following defeat to Serena Williams

The British No 1 was beaten in straight sets in Rome

Laura Robson hits a return during her second-round elimination by Serena Williams in the main stadium at the Italian Open (Getty Images)

Laura Robson has admitted last night's 6-2 6-2 defeat against world number one Serena Williams at the Internazionali d'Italia in Rome was a learning curve.

Despite breaking Williams in the opening game, Robson was no match for the 15-time Grand Slam singles champion, who avenged the loss of her sister Venus to the Briton a day earlier.

Robson served eight double faults and won just 28 per cent of points on her second serve as Williams wrapped up the second-round victory after an hour and 15 minutes.

"She's number one in the world for a reason," Robson told the WTA Tour website.

"She played really well. She didn't give me many opportunities.

"I thought it could have been a little bit closer - I had some break points I didn't take advantage of - but it was a learning experience and hopefully I'll play against her again soon."

Williams was quick to pay tribute to her beaten foe, tipping Robson for success in the future.

"It was a good match - she played really well and really smart," Williams said. "She's just a great player and I think she has such a big future."

The American is currently on a 20-match unbeaten streak, which stretches back to February and has seen her win titles in Miami, Charleston and Madrid.

"I've played lots of matches, but I'm the kind of player who likes to keep playing matches, at least now in my career," Williams added of her current run. "I just want to keep the confidence there."

PA