Night net null Injuries are a frustrating aspect for fantasy football owners. Having to pay attention all week to see if your first-round draft pick is going to play on Sunday, and if he is, how effective will he be? Well that's what we're here for.We'll highlight the top fantasy football injuries in Week 4 and give you updated reports and our best guess as to whether they'll
play. For owners of Marshawn Lynch, Arian Foster, DeMarco Murray, Chris Ivory, or even Jonathan Stewart — we've got you covered. Week 4 fantasy football rankings: Quarterbacks | Running backs | Wide receivers | Tight ends | DefensesMarshawn Lynch injury updateLynch was questionable to play last week and when owners saw him as active they got excited. But when he entered the game late and then exited after only carrying the ball five times for 14 yards, doubt started to creep in. So will he able to give it a go in Week 4 against the Lions? Maybe. Lynch's hamstring has caused some serious doubt for his availibility this week. On Wednesday a source told ESPN that Lynch would have a 50-50 chance to play and coach Pete Carroll told reporters Thursday, "It may go all the way to gametime."All of this should concern Lynch owners. It sounds like even if he does play, he'll be extremely hobbled. Replacing him will be rookie Thomas Rawls. The young back lit it up last week against Chicago carrying the ball 18 times for 109 yards. Veteran Fred Jackson will also be in the mix, but he only played 28 percent of Seattle's offensive snaps last week.What is Arian Foster's injury status?But don't get too excited. Foster has still been limited in practice all week, and that raises doubts about his availability.Arian Foster is still limited n practice. I don't see him playing until he's been through at least one week of full participation practice.— John McClain (@McClain_on_Night net) September 30, 2015If he plays, expect the Texans to give him a fairly heavy workload. We don't expect he'd be on a snap count. If he's not able to go, Alfred Blue becomes a nice play and is coming off of a 139-yard performance.Will DeMarco Murray play in Week 4?To answer my own question, it definitely appears so. Murray was inactive a week ago after injuring his hamstring mid-week, but it doesn't look like he'll miss any more game action right now. He was a full participant in practice on Thursday and is officially listed as probable. Nothing is official yet, but signs point upward for Murray.MORE: Week 4 fantasy football sleepersThe question now becomes: How good will he be? Murray has struggled so far this season carrying the ball 21 times for 11 yards. That's less than a yard per carry. Ryan Mathews, on the other hand, took advantage of Murray's Week 3 absence and ran for 108 yards. It will be interesting to see how these two split carries in Week 4.What is Jonathan Stewart's fantasy outlook?Stewart missed two days of practice in a row (Wednesday, Thursday) and raised questions about his health. He's officially listed as questionable, but he's had that tag before and has been able to give it a go. Still, his leg injury should be something for fantasy owners to monitor.MORE: Week 4 fantasy football bustsThere's been nothing so far to indicate he won't play, but sometimes we get surprised by these things. If he does play, he has a great matchup against the Buccaneers.Injury updates for Chris Ivory, Eddie Lacy, Andre Ellington and other RBsIvory: He was inactive last week, but practiced in full Thursday and is expected to start barring a setback.Lacy: He played last week, but finished with just 10 carries and played on 41 percent of the team's offensive snaps. He'll be able to play in Week 4 and said this week he “definitely feels better." Ellington: The Cardinals back has missed the last two weeks, but according to ESPN, he'll play in Week 4. He'll likely have to share the field with Chris Johnson, who has had success in Ellington's absence.Devonta Freeman: The Falcons' new leading rusher was limited in practice this week with a toe injury. The injury isn't considered serious, and he should be fine. The Falcons probably just wanted to rest him.LeSean McCoy: The Bills back isn't expected to play this week, per Rex Ryan. Look for Karlos Williams to have a big game.Joique Bell: He missed practice this week, which is never a good sign. It's possible he sits and Ameer Abdullah gets a bigger role.