Online American football betting analysts know that teams that are given time off, such as during a bye week, often perform particularly well and offer excellent online football betting value.However, in some situations players can get rusty during their time away from the game, and this rustiness can have a particularly significant impact on online football betting on first halves. This online football betting factor must be considered in several different situations, such as after bye weeks, before the playoffs, or when a player returns from injury.