Sergio Kindle, the Baltimore Ravens' first pick in the 2010 draft, suffered a head injury in an accident at a house he was visiting in Austin, Texas, and can't report to training camp Monday with the team's other rookies. It's believed that the 23-year-old Kindle, a defensive end/linebacker, fell down two flights of stairs Thursday night, according to the team's official Web site. Kindle is listed in stable condition at University Medical Center Brackenridge. http://www.nfl.com/news/story/09000...-prevent-ravens-kindle-from-reporting-to-camp