Start 'Em, Sit 'Em Week 15: Latest Fantasy Football Lineup Advice for Sunday

Some fantasy football managers got off to a great start on Thursday night when the San Francisco 49ers opened Week 15 with a win over the Seattle Seahawks. Others need strong performances the rest of the weekend to end up making it to the next round of the fantasy playoffs (which are now underway in most leagues).

There are three Saturday games this week, which gives fantasy managers less time to make start/sit decisions for players from those six teams. However, there could still be some lineup choices to debate on Sunday (as per usual), when the bulk of the contests are taking place.

Here's some start/sit advice for several players suiting up on Sunday who fantasy managers may be on the fence about.

It's been a down year for Alvin Kamara, and the Saints running back really hasn't been much of a fantasy factor of late. He's had 42 or fewer rushing yards in each of his past five games, and his only rushing touchdown of the season came in a Week 8 win over the Las Vegas Raiders (he had two more receiving touchdowns in that matchup).

But Week 15 should be a great opportunity for Kamara to look more like his past self, especially with New Orleans coming off a bye. The 27-year-old has a great matchup against the Atlanta Falcons, who are giving up the eighth-most fantasy points per game to running backs, per NFL.com.

The Saints will also need to lean on Kamara, as they're going to be without Mark Ingram, who was placed on injured reserve because of a knee injury. So Kamara may get almost all of the work out of New Orleans' backfield, giving him plenty of opportunities to rack up yards.

It may be a bit tough for fantasy managers to trust Kamara because of his lack of production this season. But it's likely wise to start him this week. So don't miss out on his probable big showing by leaving him on the bench.

There are two primary reasons why Marquise Brown's production has waned in his first season in Arizona: quarterback Kyler Murray hasn't stayed healthy, and wide receiver DeAndre Hopkins is back on the field. And that's why Brown is tough to trust in Week 15.

Murray is out for the rest of the season because of a torn ACL, so Colt McCoy will be starting at QB for the Cardinals. His primary target will continue to be Hopkins, which takes away opportunities from Brown.

Even though Brown has been targeted 16 times over his past two games, the 25-year-old hasn't had more than six catches or 46 yards in either contest. He also hasn't gotten into the end zone during that span.

On Sunday, Arizona's passing attack has a tough matchup against the Denver Broncos, who are giving up the second-fewest fantasy points per game to wide receivers, per NFL.com. So it's best to leave Brown on the bench and find a more reliable WR with a better matchup.

As the Jaguars' offense has put up bigger numbers in recent weeks, Zay Jones has been a key contributor to that unit's success. And the volume that he's seeing in the passing game has put the 27-year-old on fantasy managers' radars.

Jones has been targeted 10-plus times in three of his past four games. That includes in Week 14, when he had eight catches for 77 yards and a touchdown—his second of the season and his first since Week 3.

Jacksonville will need to keep clicking on offense in order to keep up with the Dallas Cowboys on Sunday. But even if the Jags fall behind, Jones and their other top receivers could still have impressive fantasy outputs.

So if you're in need of a receiver who has a safe floor and potentially high ceiling this week, consider plugging in Jones.