The inclement weather created a slick track surface, causing problems for some riders. And one rider who had an issue at Assen Friday was Pata Honda World Superbike’s Leon Haslam.The Brit suffered a crash during the first free practice, and was taken to the local hospital. X-rays confirmed that Haslam had fractured the tibia and fibula in his lower left leg.Pata Honda Racing says the 29-year-old British rider is being transferred to hospital in Groningen where a specialist will operate later today to pin Leon’s leg.At the opening round in Phillip Island in February, Haslam had a 7-10 finish aboard his CBR1000RR. At Aragon two weeks ago, Haslam finished ninth in both races. Heading into this weekends round at Assen, Haslam was 10th in the championship standings with 29 points.Leading the the first free practice at Assen was Kawasaki Racing’s Tom Sykes (ZX-10R Ninja).