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.

Old timer getting his kicks

Adam Vinatieri, Indianapolis Colts (66 percent)

Although he's considered one of the great clutch kickers in NFL history, Vinatieri has missed field goals in five of eight games this season. He's getting a lot of opportunities, however, with at least three field goal attempts four times in the last five games. Given how strong Andrew Luck looks, Vinatieri is a quality addition.

NEW - Dan Bailey, Dallas Cowboys (49 percent)

If Bailey hadn't missed wide left on a 54-yard attempt last Sunday night he would've reached double digits in points for the third time in his last four games. He's consistently getting chances to put points on the board, and his 88.2 percent conversion rate tells you he's making the most of them.

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.

Dan Carpenter, Miami Dolphins (84 percent)

Carpenter has shaken off a sluggish start and converted all five of his field goal attempts the past two weeks. He's heading into a nice matchup against the Tennessee Titans, who have allowed 10.8 points and three field goal attempts (both third worst in the NFL) per game over the last month.

NEW - Rob Bironas, Tennessee Titans (68 percent)

At first glance it looks like the Miami Dolphins, allowing just 6.7 points per game to opposing kickers during their last three games, don't present a great matchup for Bironas. Dig a little deeper, however, and you'll see that the Dolphins are allowing a league-high four field-goal attempts per game. If Bironas, currently hitting 81.3 percent of his FGAs, can convert he could be in for a solid afternoon.