Sergio Kindle, the Ravens’ first pick in the second round last April, suffered a head injury in a house he was visiting Thursday night in Austin, Texas. It is believed that Kindle fell down two flights of stairs. Kindle is stable, being treated and observed. Members of the Ravens’ medical staff are in communication with doctors at University Medical Center Brackenridge. Kindle will not report to McDaniel College with other rookies this Monday when the team’s training camp starts. "Members of our medical staff, including Bill Tessendorf and Dr. Andy Tucker, have spoken with doctors in Texas. We understand Sergio is stable at this time and that he is being tested and observed," said Ozzie Newsome, the Ravens’ executive vice president and general manager.