Sky’s two Colombians have taken a firm grip on the white jersey of best young rider. Yesterday, high above Lake Como at the small Pian dei Resinelli ski resort, Sergio Henao climbed into the lead. Team-mate Rigoberto Uran sits just over a minute behind in second place.

“The whole team’s working well together, the Colombians helped out Mark [Cavendish] on the sprint days and Mark helped them out where he could,” Sky sport director, Steven de Jongh told Cycling Weekly. “It’s a good combination.”

The road to Pian dei Resinelli climbs 7.75 kilometres and switches back 15 times. Years ago, including 1962 when Spain’s Angelino Soler won, locals had to pay to use the road. Yesterday, several of Sky’s rivals suffered the costs of a draining day over the Valcava and Culmine di San Pietro climbs.

American Peter Stetina (Garmin-Barracuda) sat only 1-47 minutes back in the classification at the start of the day, but lost ground early on. He paid for the previous day, when he helped team-mate Ryder Hesjedal into the leader’s pink jersey.

Damiano Caruso (Liquigas-Cannondale) dropped back around Bellabio and the start of Pian dei Resinelli. He worked for Ivan Basso, riding pace at the front before Sylvester Szmyd took over.

Sky’s Colombians were free to ride their own race after helping Cavendish in the sprints,

“Caruso is the main contender, but he has to work a lot for Basso. Stetina had to work a lot for Hesjedal, too,” added De Jongh. “We don’t have this problem in our team.”

“My priority is to Ivan,” Caruso told Cycling Weekly. “I’ll try for the white jersey, but I have to think of him first.”

Stetina’s situation is the same, underlined by a 17-minute time loss yesterday.

“To make a good placing in the white jersey class would be a big deal for Peter. But it’s clear, when you have a rider going for the overall, like Ryder, that takes precedence,” Garmin sports director Charly Wegelius told Cycling Weekly.

“He’s doing a great job, learning about the work from Christian [Vande Velde], who’s full of experience. If Pete is going to become a leader in the future, he needs to know what it is like to have someone working for him. It helps you understand what you are asking guys to do, what you can and can’t ask them to do. It’s already great thing for him and he’s going to grow a lot from it.”

Stetina and Caruso have a lot of work ahead of them, both of their leaders will fight for the overall lead in the coming week through the Alpine Mountains. Sky’s Colombians have their own objectives, a high GC and the white jersey.

Best young rider classification after stage 15

1. Sergio Henao (Col) Team Sky 65:13.02hrs

2. Rigoberto Uran (Col) Team Sky at 1-01min

3. Gianluca Brambilla (Ita) Colnag-CSF Inox at 2-50min

4. Diego Ulissi (Ita) Lampre-ISD at 8-14min

5. Tom Jelte Slagter (Ned) Rabobank at 8-53min

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Giro d’Italia 2012: Live coverage

Giro d’Italia 2012 live text coverage schedule

Giro d’Italia 2012: Stage reports

Stage 15: Rabottini takes tough win in Giro

Stage 14: Amador wins Giro’s first high mountain stage as Hesjedal reclaims lead

Stage 13: Cavendish makes it three

Stage 12: Bak attacks to win

Stage 11: Ferrari wins Giro stage on ride to redemption

Stage 10: Rodriguez wins thrilling finale to take lead

Stage nine: Ventoso wins in Frosinone as Goss and Cavendish fall

Stage eight: Pozzovivo takes another Giro win

Stage seven: Hesjedal moves into Giro lead

Stage six: Rubiano solos to epic Giro stage win

Stage five: Cavendish bounces back for another stage win

Stage four: Garmin-Barracuda win TTT to take lead

Stage three: Goss wins in Horsens as Cavendish and Phinney crash

Stage two: Cavendish wins in Herning

Stage one: Phinney wins time trial

Giro d’Italia 2012: Photo galleries

Stage 15 photo gallery

Stage 14 photo gallery

Stage 13 photo gallery

Stage 12 photo gallery

Stage 11 photo gallery

Stage 10 photo gallery

Stage nine photo gallery

Stage eight photo gallery

Stage seven photo gallery

Stage six photo gallery

Stage five photo gallery

Stage four photo gallery

Stage three photo gallery

Stage two photo gallery

Stage one photo gallery

Giro d’Italia 2012: Teams and riders

Giro d’Italia 2012 start list

Giro d’Italia 2012: TV guide

Giro d’Italia 2012: British Eurosport TV schedule

Related links

Giro d’Italia 2012: The Big Preview

Cycling Weekly’s Giro d’Italia section