At the ripe age of 27, Seattle Seahawks wide receiver Sidney Rice announced Wednesday he is retiring from the NFL due to a “history of concussions.” Rice, a veteran receiver who was picked for the Pro Bowl in 2009, made the announcement just two days before the 2014 training camp for the Seahawks. In 2011, Rice missed the last five games of the season after a concussion sustained in Week 9 was re-aggravated two weeks later. “After careful consideration and seven wonderful years playing in the National Football League, including the last three for the Seattle Seahawks, I have decided to retire from playing in the National Football League,” Rice said.