Repsol Honda's Marc Marquez conceded that Jorge Lorenzo's pace on day one at the British MotoGP had given the world championship leader the most to worry about.

Marquez topped the times this morning in FP1 at Silverstone but Lorenzo dipped under his own lap record in the afternoon to top the times by 0.224 seconds.

Honda star Marquez, who is seeking an incredible fifth straight premier class victory this weekend at Silverstone, said:

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"This afternoon from the beginning Jorge was quite fast. We tried some things and I didn't like it, but then on the last run I felt better with the bike and then the pace was not so bad.

"At the minute I'm more worried about Jorge because his pace is quite good but with Dani you never know.

"I felt so good right from the beginning. In the afternoon, we were one second faster. Jorge might be a little stronger than us so far, but we are closer to his times than we had expected.

"We needed to make some adjustments because there are many bumps on this track but I am happy because we had a good day."

Marquez, who finished third at Silverstone in 2012 in the Moto2 race, said he much preferred riding the RC213V at the British circuit.

"The main difference [compared to riding Moto2 at Silverstone] is the fast change of directions because it is so fast and the bike is heavier, but with Moto2 I struggled a lot with chatter and with this bike I had no chatter and I enjoyed it.

"Also you have bigger slides and you can change your line many times, but the lap time is more or less the same," said Marquez.

"I tried the soft tyre on the rear, but maybe tomorrow depending on the weather situation I will try the hard tyre.

"From 2010 I feel good on this track, especially with the 125 and now with the MotoGP bike."