Miami Dolphins safety Louis Delmas likely suffered a torn ACL during Wednesday's practice and is expected to miss the entire 2015 season, according to the Miami Herald. Delmas went down during a one-on-one drill against Ted Ginn Jr. of the Carolina Panthers and was seen clutching his knee before he was helped off the field by team trainers. The 28-year-old also suffered a torn ACL last season and had been practicing with the team since June, just six months after undergoing surgery. “I’d say he’s one of the best leaders or he is the best leader on our team,” Dolphins receiver Rishard Matthews said. “He brings a lot of excitement to the game. I think everybody will tell you he’s just an exciting player to be around — from the top of the organization, the bottom of the organization, everybody says the same thing about him. It’s very, very, very, very unfortunate.” Delmas' injury still has not been confirmed, but he will undergo further testing and the team is preparing to be without him moving forward.