Repsol Honda's Marc Marquez admitted that his injured finger caused him considerable pain as the reigning MotoGP champion finished third fastest overall on the combine times on day one at Jerez.

Marquez improved from eighth in FP1 to finish second fastest behind Movistar Yamaha's Jorge Lorenzo in the afternoon.

He posted his best lap of 1m 39.428s in FP2 to end the day 0.254s down on Lorenzo but was satisfied overall as he continues to recover from surgery after breaking the little finger on his left hand in a dirt bike training accident following the Argentina round.

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"We can be happy that my hand has responded quite well today - as well as could be expected," Marquez said.

"It hurts a lot but at least I can put in the laps. We'll see if tomorrow it is better or worse."

Marquez added that the injury is a bigger problem on the bike than riding with a healing broken leg at Qatar 2014, especially when "the bike has some shaking".

"But the important thing is that today we didn't use any painkillers," he continued. "Tomorrow I'll try to ride without painkillers again and only use [painkillers] on Sunday.

"As for the bike, I'm feeling pretty good with it and we are working well, but we need to improve some things - especially in the afternoon - when the track temperature rises," he added.

"The race will be at this time, so we have to improve the set-up accordingly."

Marquez starts round four trailing Valentino Rossi by 30-points after their collision in Argentina. The Yamaha rider was ninth fastest on Friday.

Dani Pedrosa remains sidelined after undergoing surgery to ease an ongoing arm-pump problem and his replacement, Hiroshi Aoyama, was 20th fastest overall on Friday as the HRC test rider prepares for his third successive race on the Repsol Honda.