 In 2013 , Favre was asked to consider returning to the NFL to play for the injury @-@ plagued St. Louis Rams . He turned down the offer , telling <unk> radio in Washington , D.C. that he has suffered memory loss and that he feared it was related to the multiple concussions he suffered throughout his career . He was previously asked in a 2009 interview with NBC how many times he had played with a concussion that with the new standards would have resulted in him sitting out . ' A lot . ' , he replied . 
