Editor's note: Welcome to the weekly installment of "Tacklin' Fantasy," our recap of the news and trends you need to keep top of mind for fantasy dominance
49er to start: Vernon Davis, TE
Vernon Davis has been Colin Kaepernick’s go-to guy in the red zone, leading the team with 11 touchdowns. With Tampa Bay Buccaneers shutdown corner Darrelle Revis manning the outside, and Tampa’s stout defensive line, Davis should see some openings when the 49ers get near the goal line.
Raider to start: Rod Streater, WR
Rod Streater has become the No. 1 wide receiver since Matt McGloin has taken over at quarterback. In the four games with McGloin under center Streater’s has averaged 5.3 receptions and 91 receiving yards per game. Opposing wide receivers have topped 105 yards five times in the Kansas City Chiefs last six games.
49er to sit: Frank Gore, RB
Gore played well last week against the Seahawks, but has still seen limited carries as the season wears on – he hasn’t exceeded 19 carries in a game since Week 7. The 49ers' Week 15 opponent, the Tampa Bay Bucs, rank No. 9 in the NFL allowing 103.7 rushing yards per game.
Raider to sit: Rashad Jennings, RB
Running back Rashad Jennings has had a nice fantasy run over his past five games, but his stats in his most recent game, against the Cowboys, were misleading as his two rushing touchdowns overshadowed his paltry 2.1 yards-per-carry average. With Marcel Reece rushing for 123 yards last week, who knows if he will cut into Jennings' workload? Can’t trust Jennings during fantasy.
NFL trend: Waiver-wire help
QB: Kirk Cousins – New Redskins starting quarterback gets a doozy Week 15 playing Atlanta. The Falcons have allowed quarterbacks to go over 200 yards passing, with at least a touchdown, in all but one of their games.
WR: Cordarrelle Patterson – Presumably no Adrian Peterson for the Vikings – so more passing opportunities – and play the No. 31 ranked pass defense, the Philadelphia Eagles.
TE: Delanie Walker – If cleared from concussion, will play the Arizona Cardinals. They’ve given up 14 touchdowns to tight ends on the year; need I say more.
Buy-low candidate: Roddy White, WR, Atlanta Falcons
Atlanta Falcons wide receiver Roddy White was largely written off the first 12 weeks of the season, but following the Falcons' bye week White looks like his usual, healthy self with 18 receptions for 217 yards. White can finally be trusted as his Falcons take on Washington in Week 15. Washington allows the No. 6 most pass yards a game with 256.7. You can finally start Roddy.
Sell-high candidate: Chris Ivory, RB, New York Jets
Since taking over as the starting running back for the New York Jets in Week 7, Chris Ivory has averaged nearly 75 yards a game and scored three touchdowns. The issue is Ivory offers nothing in the passing game – five career receptions – and plays a stout Carolina Panthers defense that leads the NFL in rushing yards allowed per game.
Star to sit: Ray Rice, RB, Baltimore Ravens
Baltimore Ravens running back Ray Rice hasn’t played up to his billing as a back-to-back Pro Bowler in 2013, averaging an even three yards per carry. Worse, he has only scored touchdowns in two games. Baltimore’s opponent Week 15, the Detroit Lions, are giving up less than 100 yards rushing per game. Sit Rice against defensive tackles Ndamukong Suh and Nick Fairley of the Lions.
No-namer to start: Chris Ogbonnaya, RB, Cleveland Browns
Throughout the season running back Chris Ogbonnaya has been the third-down, pass-catching back for the Cleveland Browns, with 41 receptions on the season. Ogbonnaya is slated to start after incumbent starter Willis McGahee left Sunday’s game with a concussion and is yet to be cleared. The Browns play the Chicago Bears in Week 15. The Bears have had a running back run for at least 95 yards in each of their previous eight games.