 Ravens fans are jumping at the chance to see the team return to the field this summer. Free passes for 20 training camp practices at the Under Armour Performance Centre in Owings Mills were released to the public this morning, and the team says they were snapped up within five minutes. The team will host about 1,000 fans per day, starting with the first practice on July 21st. Fans who were unable to claim passes today can join a wait list to attend one of the free sessions.