Team Sky found something to cheer about after a tough week off the road when former world champion Michal Kwiatkowski won the prestigious Strade Bianche classic in Rome, Italy, on Saturday.

The Pole, who also won the race in 2014, attacked a group of leading riders with about 12 kilometres left and never looked back.

Kwiatkowski, who had not won a race since claiming the GP E3-Harelbeke almost a year ago, always looked comfortable on the white gravel sections of the 175km ride.

World champion Peter Sagan abandoned after starting the race feeling unwell.

Olympic champion Greg van Avermaet of Belgium took second place ahead of his compatriot Tim Wellens.

The UK Anti-Doping chief executive officer told a British parliamentary select committee this week that there were "zero records" from a doctor who delivered a package to Team Sky rider Bradley Wiggins at a race in France in 2011.

Committee chairman Damian Collins said after the hearing that the "credibility of Team Sky and British Cycling is in tatters".

RESULTS

1. Michal Kwiatkowski (Poland / Team Sky) 4:42:42"
2. Greg Van Avermaet (Belgium / BMC Racing) +15"
3. Tim Wellens (Belgium / Lotto) +17"
4. Zdenek Stybar (Czech Republic / Quick-Step) +23"
5. Tom Dumoulin (Netherlands / Sunweb) +1:26"
6. Luke Durbridge (Australia / Orica)
7. Christopher Juul-Jensen (Denmark / Orica) +1:29"
8. Tiesj Benoot (Belgium / Lotto) +2:20"
9. Thibaut Pinot (France / FDJ) +2:23"
10. Scott Thwaites (Britain / Dimension Data) +2:52"
11. Jose Goncalves (Portugal / Katusha) +3:10"
12. Quentin Jauregui (France / AG2R) +4:05"
13. Fabio Felline (Italy / Trek)
14. Luis Leon Sanchez (Spain / Astana) +4:41"
15. Stefan Kueng (Switzerland / BMC Racing) +5:31"
16. Vegard Laengen (Norway / UAE Team Emirates) +5:41"
17. Gianni Moscon (Italy / Team Sky) +5:55"
18. Ondrej Cink (Czech Republic / Bahrain) +6:22"
19. Edvald Boasson Hagen (Norway / Dimension Data) +8:15"
20. Truls Korsaeth (Norway / Astana)
21. Matteo Trentin (Italy / Quick-Step) +8:41"
22. Oscar Gatto (Italy / Astana) +10:13"
23. Jan Bakelants (Belgium / AG2R) +10:15"
24. Floris De Tier (Belgium / LottoNL) +10:16"
25. Giovanni Visconti (Italy / Bahrain) +10:20"
26. Brent Bookwalter (U.S. / BMC Racing)
27. Petr Vakoc (Czech Republic / Quick-Step)
28. Sebastien Reichenbach (Switzerland / FDJ) +10:21"
29. Andrey Amador (Costa Rica / Movistar) +10:24"
30. Andriy Grivko (Ukraine / Astana) +10:29"