Chance to share in players' success NFL fans are set for even more interaction with the game. American football fans glued to television screens on Sundays will soon have a new way of showing their devotion to the pigskin: buying stocks linked to their favourite players. California-based brokerage house Fantex aims to raise $US10.5 million ($10.9 million) in an initial public offering of shares in Houston Texans running back Arian Foster, according to documents submitted to the Securities and Exchange Commission. According to their agreement, Foster will turn over 20 per cent of his future earnings related to football, including endorsements and contracts, to benefit his future stockholders. In return, the 27-year-old star could pocket up to $10 million up front - the bulk of the amount Fantex hopes to raise from selling shares at $10 a pop. Fantex will profit too - some $500,000 from the initial offering, plus fees on all the transactions, which are set to start in the coming weeks. The brokerage firm notes that "investing" in an athlete this way carries high risks, because his value is variable based on performance and intangible qualities, such as image. "This offering is highly speculative and the securities involve a high degree of risk," the company admits in its 37-page filing with the SEC. The company adds that people should only invest if they "can afford the loss of their entire investment." Despite these uncertainties, the San Francisco company said it intended to expand its offerings of professional athletes "with the potential to generate significant brand income." Foster, who already has endorsement deals with Toyota, supermarket chain Kroger, and sporting apparel maker Under Armour, last year signed a $US43.5 million contract through to 2016, according to NFL salary watching website overthecap.com