Nick Knowles has revealed the knee injury he suffered on Strictly Come Dancing will take nine months to fully heal. The DIY SOS presenter will have surgery following the dress rehearsal disaster, which reportedly saw the star do a jump and take a bad landing last month . The 62-year-old presenter had to quit the BBC show as a result of the injury, which happened weeks after hapless Nick hurt his shoulder and arm whilst changing a car tyre . Despite the long recovery process, Nick hopes to be in