1. Tony Romo — The Cowboys use a platoon system at quarterback, alternating between Dr. Henry Jekyll and Mr. Edward Hyde. Jekyll gets more playing time, but Hyde often makes appearances in big games. Sunday's Dallas-Philadelphia game is an important one, with first place in the NFC East at stake. Jekyll, who also goes by the pseudonym "Tony Romo," has been on his best behavior lately, with 918 passing yards, eight touchdowns and zero interceptions in his last three games, all of them Dallas victories. The Cowboys split their two games with the Eagles last season, with Jekyll throwing for 312 yards and three TDs in the first meeting, a 41-37 win for Dallas, and Hyde completing 21-of-39 passes, throwing an interception, losing two fumbles and taking three sacks in a 44-6 Dallas loss in Week 17. Budding superstar Miles Austin is said to prefer playing with Jekyll, but Hyde has been petitioning head coach Wade Phillips for playing time. The choice of starter for Week Nine is said to be a game-time decision.

2. Chris Johnson — The Titans got another superhuman performance from Johnson last week. His 228 rushing yards and two TDs against Jacksonville helped give Tennessee its first win of the season, and he embarrassed the Jaguars with an 89-yard TD run in the fourth quarter. (Let's just say the footage of that play won't be used for any "How to Tackle" instructional videos.) It's hard to believe that it was only Johnson's second-best game this season, and equally hard to believe that the 89-yarder was his second-longest TD run. Johnson had 284 rushing-receiving yards and three TDs in a Week Two loss to the Texans, with a 91-yard scoring dash. The Titans visit San Francisco this week, and unlike the Jaguars, the 49ers have some tacklers (star LB Patrick Willis among them) who know how to wrap up. The Niners rank second in the league against the run, allowing 84.9 rushing yards per game.

3. Reggie Wayne — When you watch this master craftsman ply his trade, it's almost inconceivable that he was considered something of a disappointment early in his career. Wayne was a first-round draft pick in 2001 but didn't become a full-time starter for the Colts until 2003, and he didn't have a 1,000 season until 2004. Now, he's working on a sixth consecutive 1,000-yard season and is on pace to record career highs in catches, receiving yardage and TDs. But Wayne's excellence goes beyond the numbers. To watch him is to appreciate just how brilliant he has become. Wayne has neither exceptional size nor track speed, but he knows every nuance of his position, and it seems as if he and QB Peyton Manning have some sort of supernatural telepathy between them. The Colts host the Texans this week, so Wayne will get to compare his skills to those of Andre Johnson in a game that should add new fuel to those best-receiver-in-the-league debates. And here's another debate worth having: When Manning's career is over, who will be considered the best receiver he ever played with - Wayne or Marvin Harrison?

4. Ryan Moats — Little-used and just plain little, Moats was the beneficiary last week when Steve Slaton was sent to the doghouse as punishment for his seventh fumble in eight games. The 5-foot-8 Moats came off the bench to run for 128 yards and three TDs in the Texans' 31-10 win over the Bills. He hadn't had a 100-yard rushing game or a multiple-TD game since December 2005, when he was a rookie with the Eagles. So how will the Texans deploy their running backs this week against the Colts? Head coach Gary Kubiak says he will use all three of his backs (Slaton, Moats and Chris Brown), but he declined to offer precise measurements. Sunday's game against the Colts should offer clues as to whether Moats has any fantasy value going forward or if he's just a one-week wonder.

5. Jamaal Charles — There has been ample speculation that Charles would be more effective as the Chiefs' starting running back than Larry Johnson has been lately, and now Charles gets to audition for the role while L.J. serves a one-game suspension for using a naughty word. Charles has only 90 rushing attempts in 22 career games, but he has gained 5.3 yards per carry and has also proven to be an adept pass catcher. The Chiefs would love for Charles to play exceptionally against the Jaguars this week, because there's little doubt that the team would love to park Johnson on the sideline indefinitely without drawing the stink eye from the NFL Players Association, which tends to frown on teams that bench players for behavioral reasons.

6. Maurice Jones-Drew — As revered as Jones-Drew has become, he has yet to record a 1,000-yard rushing season. That seems destined to change, since MJD is nearly two-thirds of the way there through only seven games. He's also on pace for more than 20 TDs, and the fourth-year veteran is inching closer to a truly remarkable career rate of one TD per game. (Including his two career kick-return TDs, he now has 50 TDs in 54 games. Jones-Drew managed to turn eight rushing attempts into 177 yards and two TDs last week, and this week he'll have the privilege of facing a Chiefs defense that ranks 26th against the run.

7. Derrick Mason — Mason has caught a TD pass in four of his last five games, but not only did he fail to catch a TD pass in the Ravens' Week Five loss to the Bengals, he failed to catch any passes at all. Mason was surly after that game, telling reporters that they should speak to offensive coordinator Cam Cameron about the zero-catch performance. Combine Mason's anger over his Week Five shutout with the anger he displayed last week in throwing his helmet after failing to lobby an official for a pass-interference call (thus drawing a flag himself), and the veteran receiver should have a rather large chip on his shoulder for this week's rematch against the Bengals. Cincinnati's earlier blanking of Mason is especially confounding when you consider how sketchy the Bengals' pass defense has been. Cincy ranks 30th against the pass, yielding 253.3 passing yards per game.

8. Alex Smith — He now has played two good games in a row, and fantasy owners are beginning to warm to Smith after long ago writing him off as a bust. It's still way too early to hand Smith the Comeback Player of the Year Award, and few would be surprised if his unexpected display of competence proved to be a mirage. This week should be an interesting test for Smith, since the 49ers' opponents, the Titans, have been getting fire-bombed through the air all season. Tennessee ranks 32nd against the pass and has given up a league-high 19 TD passes. But note that the 49ers will be without starting OLT Joe Staley, who has a sprained knee.

9. Devin Hester — Compared with his exploits as a kick returner, Hester's steady development as a receiver has drawn relatively little notice. Over his last three games, Hester has hauled in 21 passes for 265 yards. He leads the Bears in receptions and receiving yards, he has become QB Jay Cutler's favorite target, and obviously, Hester is capable of taking it to the house any time he's on the field. However, lousy blocking has been the Bears' bête noir this season, limiting the team's offensive success. If Cutler has time to throw against the Cardinals this week, he and Hester should be a productive pitch-and-catch tandem. If Cutler's protection against Arizona is lousy, all bets are off.

10. Josh Freeman — The Buccaneers' rookie quarterback makes the first start of his professional career this weekend against the Packers, and though few fantasy owners are desperate enough to start him, the debut of any QB taken in the first round of the NFL draft warrants attention. At 6-6 and 248 pounds, Freeman is a big dude with a big arm. His reputation of being a diligent student suggests that he has a reasonable chance to avoid JaMarcus Russell-caliber bustdom. Freeman can run a little bit, too, and he might need to do some running when Packers defensive coordinator Dom Capers sends his blitzers after the new guy. It might be a while before Freeman develops into a decent fantasy starter, but his performance this weekend will hint at what sort of fantasy value Buccaneers TE Kellen Winslow and WR Antonio Bryant will have the rest of the season.