A keeper league is a variation of the traditional redraft league format in fantasy football. Unlike a dynasty league, where a teams entire roster carries over year after year, a keeper league still holds new drafts every season. However, unlike a traditional redraft league, keeper leagues allow you to keep a small number of players from your team into the next season. The number of players allowed to be kept, the length of time a player can be kept, and the cost for keeping a player are all things that can vary dramatically, league to league. In many ways, keeper leagues offer the best of both worlds. They aren’t nearly as involved as dynasty leagues, where you’re managing rosters year-round, but they also involve a lot more strategy than redraft leagues, where you simply show up at the start of every NFL season and start fresh. Keeper leagues tend to act as a bridge venture for new fantasy football players who are looking for a little more of a challenge than regular redraft leagues. The rules and stipulations on keeping a player can be based on his tenure, total team tenure, draft position, or player salary, among other criteria in certain leagues. Keeper leagues work virtually the same as a normal fantasy league, except that each team gets to keep a certain number of players from year to year.