REIMS, France -- Vincenzo Nibali is growing comfortable in his yellow jersey.

He's not taking the Tour de France lead for granted, though.

Despite the stunning departure of reigning champion Chris Froome in a crash the day before, the Italian says he's "afraid" of two-time champ Alberto Contador, and senses other contenders are looking for opportunities to strip him of cycling's most coveted jersey.

Nibali took another, if small, step on Thursday toward the Tour crown by maintaining his lead as the pack arrived in Reims -- whose famed Cathedral hosted many French coronations -- in a drizzly and crash-marred sixth stage won by German sprint specialist Andre Greipel.

Nibali, who has won cycling's two other Grand tours -- the Spanish Vuelta and Italian Giro -- made it five straight days in the yellow shirt that he hopes to take home when the race ends on the' Champs-Elysees on July 27.

It's still very early, though, and the race has only had one real climbing day so far: Far tougher up-and-down days are ahead this weekend in the Vosges mountains, in the Alps in week two, and the Pyrenees in week three.

But Nibali says he is "calm" and feeling good physically, his Astana team is the best-performing squad so far, and several rival teams have been losing riders to crashes.

"I'm still afraid of Contador," said Nibali, adding that he expects the Spaniard and other yellow jersey aspirants to attack when the race enters the eastern Vosges range on Saturday -- culminating with a tough uphill finish in Monday's Stage 10.

Contador, a day after losing about 2½ minutes to Nibali on a muddy ride over cobblestones, was dealt another setback on Thursday: His Saxo-Tinkoff teammate Jesus Hernandez, who was expected to help him up the climbs, dropped out after a crash that left him dazed on the roadside.

Richie Porte, who inherited the leadership of Team Sky after Froome quit, also lost a teammate. Spanish veteran Xabier Zandio was taken to hospital with a suspected broken rib and severe back injury from a group spill with about 79 kilometers left.

The race medical report listed a total of 14 riders with varying injuries from "two big crashes."

Greipel, the Germany champion, collected his sixth career Tour stage win ahead of Norway's Alexander Kristoff in second and France's Samuel Dumoulin in third over the 120-mile ride. Greipel's job got easier after countryman Marcel Kittel, who has dominated the sprints this year, got a late flat.

The top of the standings didn't change, as most of the contenders for victory in the three-week race trailed close behind the muscular Greipel. He was not a challenger for the overall title; like many sprinters, he does not fare well on the climbs that are crucial to winning in Paris. He's 37½ minutes behind Nibali.

Overall, Nibali has a two-second lead over Danish teammate Jakob Fuglsang. Peter Sagan of Slovakia was third, 44 seconds back. Porte, an Australian, was another 70 seconds back in eighth place. American Andrew Talansky, who won the Criterium du Dauphine in June, was ninth, 2:05 behind Nibali. Spaniard Alejandro Valverde was 10th, 2:11 back, and Contador was in 18th, 2:37 behind.

With the Tour giving a nod to 100 years since the start of World War I, French President Francois Hollande honored the fallen and took a ride with race director Christian Prudhomme on Thursday. The Tour chief led a ceremony honoring 1909 winner Francois Faber, one of three winners of early Tours who died in the war.

Stage 7 on Friday will be the Tour's second longest, another mostly flat 234.5-kilometer (146-mile) trek from Epernay to Nancy.

 

Andre Greipel of Germany and Lotto-Belisol
Bryn Lennon/Getty Images
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