Ahhhhhh. We're back. Football is here. Life is good. Buckle up, because although it's a long season, it's fast moving. Before you know it, the leaves will change colors, the temperature will drop -- and you'll need some help for your fantasy football roster.

Truth be told, that help may be needed right now. We often say among the ESPN Fantasy staffers that the draft is where you build your initial roster, emphasizing "initial." Trades are prevalent in fantasy, so too is the waiver wire. Sometimes, it's a player whose seasonlong production wins you a championship (think Alvin Kamara last season), sometimes it's a player that finishes strong after a quiet start because of a trade or injury to a player ahead of him on the depth chart (the Kenyan Drake model).

No matter what approach you take, active roster management via the waiver wire is essential. And we're here to help. Every. Single. Week.

A few notes:

Players on this list must be available in over 50 percent of leagues on ESPN.com. We still encourage you to keep your eyes out for players who bring value that might be available, but they won't be highlighted on this if they are -- say -- available in only 30 percent of leagues. Players will appear on this list for multiple weeks. If there's still value in a player from one week to the next and he's still available in over 50 percent of leagues, look for a repeat appearance. Sometimes it takes some time for people to fully understand a player's value. Not all waiver claims are created equal. This list will -- speaking generally -- be chronicled by most valuable add to players with less value, but that depends upon what you might need. Also, not every waiver claim is a player that you project to have on your roster for an extended period of time. It could be a one- or two-week stopgap. It could be a player you roster all season. Use the waiver wire in different ways.

So here we go, it's the Week 2 ESPN Fantasy waiver wire column.

T.J. Yeldon, RB, Jacksonville Jaguars (7.9 percent): What we don't know (as of the time of this writing), is whether or not Leonard Fournette will miss time because of a hamstring injury that took him out of Week 1, but we do know that Yeldon is the best bet to fill in as the starter if Fournette sits. Yeldon rushed 14 times for 51 yards and added a receiving score in relief of Fournette. Should Yeldon start this week, he'd have top-25 running back value.

Tyrod Taylor, QB, Cleveland Browns (36.0 percent): If you're still looking for a Carson Wentz fill-in (he could be out for Week 2) or not yet settled in on a quarterback, Taylor should be on your radar. Consider this: he played rather poorly in Week 1, completing 15-of-40 passes for 197 yards, but his rushing floor is simply too good to ignore. With 77 rushing yards and a touchdown in Week 1, Taylor reminded us that he has a lot of ways to pick up fantasy points, whether it looks pretty or not.

Aaron Jones, RB, Green Bay Packers (41.7 percent): Jones will sit one more game due to a suspension, but while he won't be on the field until Week 3, it's much less likely that you'll be able to find him on the waiver wire next week when he's set to return to action. Jones was Green Bay's most explosive runner in 2017, averaging 5.5 yards per carry and scoring four times on 81 rushes. Add him now as he has top-30 running back upside upon return.

DeSean Jackson, WR, Tampa Bay Buccaneers (41.9 percent): The perpetually speedy Jackson found the end zone twice in Week 1 with nearly 150 yards on five catches. However, he also departed the game with an injury (concussion/shoulder). He's been a bit of an up-and-down player in recent years, but the upside is too good to ignore.

George Kittle, TE, San Francisco 49ers (37.0 percent): Kittle profiled as a potential breakout candidate coming into the season, as the athletic tight end made a notable mark late in 2017 as a rookie. He picked up five catches for 90 yards -- and left a massive big play on the field with a dropped touchdown -- in Week 1 and should be a prominent part of this passing game going forward.

Brandon Marshall, WR, Seattle Seahawks (5.7 percent): Seahawks coach Pete Carroll said after Week 1 that Doug Baldwin had a sprained MCL (on the other knee than the one which limited him this preseason), meaning the Seahawks may have to lean on other pass catchers for some time. Marshall -- in his Seahawks debut -- found the end zone and had three total catches for 46 yards. He and Tyler Lockett (available in close to 47 percent of leagues) project as the top two receivers if Baldwin is forced to miss any games.

Antonio Gates, TE, Los Angeles Chargers (26.4 percent): It was a slow start for Gates, who had just two catches in Week 1, but with injuries to Delanie Walker and Greg Olsen, tight end could become a position of need on the waiver wire this week. You know he's good in the red zone.