Froome retains yellow jersey after tough day at the top
July 7, 2013 -- Updated 1843 GMT (0243 HKT)
Team Sky's Chris Froome enjoys a one minute and 25 second lead over his nearest rival.
- Ireland's Dan Martin won Sunday's ninth stage
- Team Sky's Chris Froome retains yellow jersey
- Froome left to fend for himself after team failure
- Froome leads field by one minute and 25 seconds
(CNN) -- Chris Froome retained the yellow jersey on a day of toil and trouble as Ireland's Dan Martin won the ninth stage of the Tour de France.
Sky Team rider Froome, who has a one minute and 25 second lead over his closest challenger, was forced to battle on his own as his teammates failed to give him adequate protection.
Richie Porte lost his grip on second place overall after finishing more than 17 minutes adrift, while Vasili Kiryienka was swept up by a broom wagon and is unlikely to feature in the remainder of the Tour.
There was also misery for Peter Kennaugh, who suffered bruising after falling from his bike -- an incident which left Froome wide open to attack on all fronts.
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"This was one of the hardest days I have ever had on the bike," Froome told reporters.
"I had no-one else with me. I am really happy I have come through today. I was completely on my own, I had (sporting director) Nicolas Portal in the car telling me not to worry."
Martin, the nephew of great Irish cyclist Stephen Roche, won the long descent to Bagneres-de-Bigorre with Froome following home 20 seconds later in a pack which included rivals Alejandro Valverde and Alberto Contador.
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Team Sky principal Dave Brailsford revealed his surprise at seeing his team struggle with Porte's failure particularly difficult for him to comprehend.
"That was a bit of a surprise, it is not often we've seen Richie have a day like that," Brailsford said.
"He fought for a long time and he wasn't that far back, but eventually you have to think about the future of the race and not just today.
"It was increasingly clear we were going to keep the jersey so there was no need to dig really deep.
"It was better that he sat up and saved himself."
Garmin-Sharp's Martin is the first Irishman to win a stage since Roche won stage 16 of the 1992 Tour in La Bourboule.
"We just wanted to have fun today," the 26-year-old told reporters.
"We love racing bikes and making racing exciting for people at home.
"If we win, we win, if we don't, we make a good show. I think it was a very exciting stage and luckily I had the legs to finish the job."
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