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: Look to acquire

The following players will have greater significance in deep fantasy football leagues. In shallow fantasy football leagues, they are not as high of a priority but should be considered based on your fantasy football team's needs.

Turning it up of late

Russell Wilson, Seattle Seahawks (66 percent)

Wilson's role was primarily that of a game manager early this season, but the rookie has been posting solid numbers recently. In the last four games, he has thrown for 206 yards, two touchdowns and 0.5 interceptions per contest; that includes multiple touchdown strikes three times. If you're seeking a quality reserve Wilson should fit the bill.

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 straits. Some have, however, shown some life and should be followed in case they materialize as options beyond their temporary use.

NEW - Alex Smith, San Francisco 49ers (35 percent)

While typically more of a game manager, Smith has shown the ability to exploit lesser defenses. Enter the St. Louis Rams, who have been lit up by opposing quarterbacks over the past month (three games) for 282.7 yards and an NFL-worst three touchdowns per game. If your QB1 is staring down a bad matchup or is on his bye, Smith makes an enticing one-week alternative.

Fantasy football free agents: Watch list

These fantasy football free agents shouldn't be on your immediate list. They may have had a big week. They may have talent but are buried on the depth chart and merely awaiting an opportunity. Still, fantasy football players must know who they are for their potential contribution in the future.

Ryan Tannehill, Miami Dolphins (82 percent)

Despite playing with a bum wheel in Week 9, Tannehill (knee) still passed for 290 yards and a touchdown. He hasn't accounted for many scores - he has just five touchdown passes on the season - but his growth is obvious. Consider stashing him if you have a strong QB1 on board.