While the most notable ADP trend action we've seen recently is the rise of quarterbacks and tight ends in both NFL Standard and PPR leagues, there are still several players at both the running back and wide receiver positions who are rising quickly through the ranks as the NFL preseason wraps up. The last of the exhibition games have come and gone now, position battles have won and lost and if you still haven't drafted, you'll easily benefit from the updated knowledge. Here's a look at some of the biggest risers you'll want to watch for to see if you need to act fast or whether waiting a few rounds is still an option.

Doug Martin, RB TB – current ADP: 24.44; trend: +36.9|PERCENT|

Not that it came as any big surprise, but when the Bucs official site finally updated the team's depth chart earlier this week, it was Martin at the top of the list rather than incumbent LeGarrette Blount. Again, it was completely expected as even head coach Greg Schiano had been endorsing Martin since the beginning of camp. But now that official word has broken, Martin is deservedly shooting up the ADP ranks. He's a complete back with the ability to take it both between the tackles and to the outside as well as being a strong pass-catcher and Schiano has already said that he will be the team's every-down back. He's coming off the board at the tail end of the second round, but could move up even further over the next few days.

Julio Jones, WR ATL – 25.44; +24.4|PERCENT|

With all the hype coming Matt Ryan's way, it's no wonder that Jones is seeing such a strong increase in ADP. But don't misunderstand; Jones has been a hot commodity in drafts after last season's outstanding performance that saw him catch 54 passes for 956 yards and eight touchdowns. Expectations are high and while his ADP indicates a late second round selection, he is going as high as 14^th, second wide receiver only to Calvin Johnson. If you covet Jones and are expecting a big breakout season, like many fantasy owners do, then there's no waiting to be done. Act fast or risk losing him to your competition.

Jeremy Maclin, WR PHI – 61.04; +10.9|PERCENT|

Injuries disrupted Maclin's season last year and yet he still managed to post 859 yards and five touchdowns. While DeSean Jackson might be considered the deep threat in Philadelphia, Maclin tends to be the guyMichael Vick initially looks for when he's scrambling around the backfield. A hamstring issue slowed him down during preseason, but not enough to keep him out of action, so his ADP continues to inch forward as he's now an early fifth round selection and a top 20 wide receiver. Great hands and being a strong route-runner, Maclin won't come close to slipping through. The good news is that you can build up your core group with your first four picks, but if you don't grab Maclin immediately after that, you'll miss out.

Peyton Hillis, RB KC – 75.80; +26.0|PERCENT|

Just how much is faith being lost in Jamaal Charles these days? With a strong preseason and a handful of short-yardage touchdown poachings, Hillis has gone from eighth round mandatory handcuff to sixth round starting flex option. He is expected to see a fair amount of time on the field both at the goal line and between the 20's and is also being lauded for his pass-catching abilities which are putting him in even more favor with the coaches. Charles has a lot to prove still, coming back from a torn ACL last season and there are obvious concerns. If there weren't, then Hillis probably wouldn't be garnering so much attention, both in Kansas City and in fantasy drafts.

Evan Royster, RB WAS – 121.20; +20.2|PERCENT|

There's really nothing worse than having to endure a season of guessing games when it comes to a Shanahan-run offense. But lo and behold, fantasy owners are willing to make the sacrifice this year due to the lack of depth at the position and are scooping up Royster much earlier than usual after his reasonably impressive preseason. With rumors of Tim Hightower being released, Royster moves up the depth chart, but so does Roy Helu and even Alfred Morris.  But Helu continues to drop in ADP rankings while Royster climbs as most are expecting him to get the bulk of the carries this season. However, we've seen this type of situation before and it's going to be a crapshoot trying to figure out who the Redskins are going to go with on a regular basis. You can't draft one without the other, so if you land Helu near his 83.92 ADP, you're going to have to use either your next pick or the one after to secure Royster as well.

With each and every day that Maurice Jones-Drew continues to hold out, Jennings gains an even greater value. Over the past two weeks, Jennings has gone from a 15^th or 16^th round insurance policy to a legitimate 11^th round option. And that's even underselling him if you consider the fact that MJD won't be around for the season opener and with have an awful lot of rust to shake off before he becomes an effective back again. Jennings remains this far down the ADP ranks due to the uncertainty of his future, but he could be a worthwhile flex option early on and if he proves worthy, a possible starting running back on numerous fantasy rosters.

Ronnie Brown, RB SD – 145.88; +40.2|PERCENT|

Jackie Battle? Pffffft! Curtis Brinkley? Fuhgeddaboudit! All eyes are on Brown as the replacement back for the injured Ryan Mathews and with at least three weeks of starting time on a usually potent offense, he's seen his ADP skyrocket from the 17^th round oblivion to a viable 12^th round option. He's not incredibly effective between the tackles, but he's an outstanding pass-catcher which, in the Chargers offensive scheme, is a huge plus. If he proves successful, then the Chargers won't feel the need to rush Mathews back if he's not ready, but don't overvalue him as he is not the team's ideal first-stringer. The 12^th round seems about right for a guy who may only have a decent value over the first three weeks, so there's no need to rush unless you hear news that Mathews could be out for even longer. 

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Howard Bender has been covering fantasy sports for over a decade on a variety of web sites.  You can follow him on Twitter at @rotobuzzguy or for questions, thoughts or comments, email him atrotobuzzguy@gmail.com.