It has been just over a year since former Green Bay Packers safety Nick Collins suffered a frightening season-ending neck injury. It might be the last time we see Collins on an NFL field. Collins' agent, Alan Herman, told CBSSports.com's Jason La Canfora his client likely will be forced to retire. The specialist who performed Collins' neck surgery advised the ex-Packer to to end his pursuit of an NFL comeback following a recent examination. Collins had been training regularly at IMG Academy in Florida, though that training ceased after the latest examination. Source: NFL.com