Cyclists ride at the London Olympic 2012 Velodrome (9 images)

Venezuelan Enrique Luis Diaz leads the pack in the Omnium Sprint at the UCI Track Cycling World Cup at the new Olympic Velodrome in Stratford, London on February 17, 2012. UPI/Hugo Philpott

Irish cyclist Martin Irvine lies on the floor after his crash at the UCI Track Cycling World Cup which is being held at the new Olympic Velodrome in Stratford, London on February 17, 2012. UPI/Hugo Philpott

A track specialist repairs a damaged part of the track after a crash at the UCI Track Cycling World Cup which is being held at the new Olympic Velodrome in Stratford, London on February 17, 2012. UPI/Hugo Philpott

Track specialists repair a damaged part of the track after a crash at the UCI Track Cycling World Cup at the new Olympic Velodrome in Stratford, London on February 17, 2012. UPI/Hugo Philpott