Week 5 fantasy football rankings are starting to take shape, but before we have a concrete idea of what will happen this week, we need to know about the latest injury news and updates. Across the NFL, some of the best fantasy pass-catchers suffered injuries on Sunday. T.Y. Hilton and Will Fuller are both dealing with hamstring ailments while Geronimo Allison is dealing with a concussion. These injuries could linger and make an impact on our WR rankings for Week 5, and concerned owners may want to target some replacements for them on the waiver wire.

We'll be sure to keep you updated on all the latest major injury news, including injuries to Leonard Fournette and Rob Gronkowski. For more fantasy updates, follow us on Twitter @SN_Fantasy.

Week 5 Rankings:

Quarterback | Running Back | Wide Receiver | Tight End | D/ST | Kicker

T.Y. Hilton injury update

Hilton left the Colts-Texans game with a hamstring injury in the fourth quarter, and it appears that he won't be able to suit up in Week 5. According to ESPN's Adam Schefter, Colts head coach Frank Reich said that Hilton is going to miss Thursday's game against the Patriots because of the injury.

With Hilton out, Andrew Luck will probably look to spread the ball around, and guys like Ryan Grant, Chester Rogers, and Zach Pascal will all get more opportunities at the receiver position. Eric Ebron could end up being the top overall receiving option at TE, and he's the only guy who would really be a recommended fantasy start of that crew.

As for Hilton, it's unclear the exact extent of this injury, but since soft-tissue injuries can linger, he will need to be monitored in the coming weeks. For a player that relies on his speed to generate separation, the Colts will likely hold him out until he's fully healthy, as he could end up doing more damage to his hamstring if he tries to rush back. With Hilton's status seemingly already decided for this week, we'll turn an eye to Week 6 and see if he can come close to returning to the field.

Will Fuller injury news

Fuller suffered a hamstring injury in the Texans overtime victory over the Colts, and he didn't return after exiting the game. However, per ESPN's Sarah Barshop, head coach Bill O'Brien said that Fuller probably could have played in the second half, but O'Brien decided to sit him out because he couldn't run all the routes he needed to. That would seemingly bode well for Fuller to potentially return after about a week's worth of rest, but hamstring issues can act up at any time and he dealt with one during the preseason.

While Fuller was out, rookie WR Keke Coutee went off and totaled 11 catches and 109 yards in his first action of the season. Coutee was a fourth-round pick by the Texans, and they seem to be high on his potential. It's probable that Coutee will work as the third receiver in Houston's offense, so he should have a good chance to produce either way. But if Fuller is out, he will definitely get a stock up.

For now, Fuller will stay in our WR rankings, as it seems that he'll have enough time to work back into game shape during the week. But, if he has any issues at practice, we'll certainly adjust the rankings and bump up Coutee accordingly for the Texans-Cowboys Sunday night matchup.

MORE: Full Week 5 waiver wire list | RB handcuff chart

Geronimo Allison injury update

According to ESPN's Rob Demovsky, Allison suffered a concussion in the Packers win over the Bills last week. Allison, who was serving as the No. 2 receiver with Randall Cobb out, had six catches for 80 yards before departing.

Allison will be in concussion protocol, and it's uncertain whether he will be able to clear that ahead of the Packers Week 5 matchup with the Lions. In the event that he misses time and Cobb is still out, Marquez Valdes-Scantling would likely be the next man up at receiver. The fifth-round rookie would be a big risk in most fantasy formats given his lack of proven production at the NFL level. Still, with Aaron Rodgers throwing him the ball, he could be worthy of a FLEX play if you're really thin at receiver.

The Packers receivers will need to be watched this week, as the status of both Allison and Cobb will have a big impact on fantasy football rankings. Either way, given the tricky nature of concussions, it's hard to recommend relying on Allison for this week's contest.