. >> measurey sperber is a visiting professor from the university of california berkeley. us. >> thank you ray. >>> corporate branding is a huge part of college athletics, next we're joined by al jazeera fault lines correspondent josh rushing. whether we come back. >> corporate banners are all over this stadium. it shows verizon , coca-cola and nike. its on not just the banners but on every single player's uniform and on their shoes. >> welcome back to "inside story". at the top of the program we introduced you to darius robinson, a former clemson student who used his name and position to promote his business. we want to bring in fault lines contributessor josh rushing. josh, thanks for being with us. >> thanks for having me. >> so they tell robinson he can't use his image, just before the break the stadiums are plastered with corporate sponsorship. >> you're right, it is a billion dollar industry and those billions come from the corporations. branding, getting in front of the fans including me. but the players are left out of the economic system so of course they can't se