Health will be key for the San Francisco 49ers if they want to make the leap to the playoffs in 2019. Ironically enough, they took a chance on some players with injury questions in free agency. Somebody is going to have a big year on the 49ers defense that none of us are expecting. Life is a lot easier if you have three people on the defensive line that can get a sack on any given play. If the Niners play their cards right, they’ll be heading into the season with three high quality players that can rush the passer.