. >> they should get roberta backless 1. has been planning to injury.inally feeling 100 percent. >> rules missed practice yesterday th lower body soreness. >> chicago marathon as this sunday. 40,000 runners will start and end in grant park. >> as far north as addison street and as far south as u.s. cellular field. the race kicks off at 7:00 a.m.. taking part in this weekend's race. running his first marathon. he met a local man who is running for a very special cause. >> so far have done on thover what thousand miles. >> so inspired by his grandmother is fight with cystic fibrosis. he came up with a crazy way to raise funds for research. running around the country for her honor. >> 11,000 mi.. what is it like running that far? >> i will get back to you. it is from seattle to maine to florida to california. i decided i needed to do something for her. running is something have learned to do. if you ask him about his experience he will tell you it looks like this. he is blind. tell us how you lost your eyesight? >> a drunk driver. as a blind runner he cann