FAAB uses a season-long budget and blind bids to award waiver players. Use this practical framework to decide how much to bid and when to spend aggressively.

An ineligible receiver downfield flag requires an ineligible player’s entire body to be more than one yard past the line before the pass. Learn the NFL rule and five-yard penalty.

A muffed punt happens when a returner touches the kick without gaining possession. Learn how a muff differs from a fumble, who may recover and why the kicking team cannot advance.

Down by contact ends an NFL play when opponent contact causes a runner to touch the ground with more than a hand or foot. Learn the exceptions and fumble rules.

Forward progress preserves the farthest point a ball carrier reaches before momentum stops. Learn how officials spot the ball, end the play and handle fumbles.

Prevent defense protects against a fast touchdown by keeping routes in front, trading selected short gains for time and protecting a late lead.

A dynasty rookie draft adds the newest NFL players to existing rosters. Learn tiers, format adjustments, pick trades, roster cuts and strategy.

A dynasty taxi squad stores eligible young players outside the active bench. Learn deadlines, promotion rules, roster strategy and who belongs.

An NFL offense needs at least seven players on the line, eligible receivers on both ends and clear eligibility. Learn the five-yard illegal-formation rule.

Clipping is a 15-yard NFL foul for blocking a non-runner from behind and below the waist. Learn the four tests, exceptions and similar penalties.