Longtime defensive end Chris Long appeared to announce his retirement from the NFL in a Twitter post Saturday night.Long, 34, published a picture in which he raised a red plastic cup toward a mountainous horizon.”Cheers,” wrote Long in his Twitter post. “Been a hell of a journey. Eleven years and I can honestly say I put my soul into every minute of it. Highs and lows. I’ve seen them both and I appreciate the perspective. Gratitude and love to those who lifted me up.”The son of Hall of Famer Howie Long quickly set himself apart as a player and humanitarian during his career. He finished with 70 sacks and won a pair of Super Bowl rings, including one with the 2016 New England Patriots and one with the 2017 Philadelphia Eagles.In 2017, Long supported teammate Malcolm Jenkins as he raised a fist during the national anthem.