Former racer James Whitham has backed Irish rider Jonathan Rea to continue to improve in the 2010 FIM Superbike World Championship.The Hannspree Ten Kate Honda rider finished the 2009 season in fifth in the final points standings and Whitham, a former World Superbike and World Supersport race winner and now commentator with eurosport, said: "He gets better every race and I think it is more th...