Fantasy Football Waiver Wire: QB | RB | WR | TE | PK | DT

If you are serious about winning your fantasy league football championship, stay on top of your fantasy football team throughout the year.

Each week during the NFL fantasy football season, KFFL brings you its Fantasy Football Waiver Wire, which breaks down players to pick up. Be aggressive when picking up fantasy football free agents. Even if you do not need a player, you can tuck him away for depth or block others from adding him to their fantasy football team.

Note: Percentage of polled leagues in which player is available in parentheses

Fantasy football free agents: One-week plays

The following fantasy football pickups are for those who need injury or bye week replacements. They are not players you immediately acquire - unless your team is in dire straights. Some have, however, shown some life and should be followed in case they materialize as options beyond their temporary use.

Miami Dolphins (55 percent)

The Dolphins have sacked the quarterback 2.50 times per game since Week 8, making them a top-10 fantasy pass rush in that time. They've faced sack- and turnover-friendly quarterbacks in the last three weeks: the Tennessee Titans' Vince Young and Kerry Collins, the Chicago Bears' Jay Cutler and the Oakland Raiders' Bruce Gradkowski.

Wake up and smell the matchup

The Browns have been sacked 2.75 times, been picked off 0.75 times and lost 1.00 fumbles per game in the last four weeks. In Weeks 11 and 12, Colt McCoy (ankle) was sacked nine times combined. Jake Delhomme started in Week 12 and was sacked twice and picked off twice. Cleveland is undecided on its Week 13 slinger, but either way, helpful fantasy stats should go to the opposing defense.

Seattle Seahawks (50 percent)

Like the Dolphins, Seattle faces a quarterback situation that has fantasy allure. Seattle has tumbled since being a top early-season unit; they've recorded just 1.25 sacks, 0.75 interceptions and 0.75 fumble recoveries per game in the last month.

The Seahawks will line up against the Carolina Panthers, led by quarterback Jimmy Clausen, who was sacked three times and picked off once in Week 12. Regardless of who has taken their snaps, Carolina has been a promising matchup for fantasy defenses: Since Week 8, they've allowed 3.00 sacks, 1.00 interceptions and 0.50 lost fumbles per game.