Note: FanDuel is hosting a one-week Fantasy Football league with $5 million in prizes for Week 1. It’s just $25 to enter and first place will win $1 million! Enter now before it fills.

TAMPA BAY -- After showing off flash and dash for the third straight preseason game, Buccaneers running back Doug Martin walked out of the locker room with a smirk on his face on Saturday night. It's a trademark of confidence.

Why wouldn't he be confident? It took a little while, starting with minus-1 yards on his first four carries against a quality Browns run defense, but Martin busted through with a fantastic 19-yard touchdown run in the second quarter and piled up another 22 yards on his next three carries after that.

"Not every play is going to pop for 20 or 30 or 10 or not even 5 (yards)," Martin said after the game. "You want to average four yards a carry, that was our goal. ... There's a few plays I'd like to have back. I set my expectations very high and I didn't meet those expectations tonight. But we're going to get better."

Not that anyone's complaining. Martin's preseason totals are now at 118 yards on 20 carries with Saturday's score. It's a huge shot in the arm for a guy who needed to show the world -- and the Buccaneers -- that he could still play in this league.

And maybe the person who needed to be shown this the most is Martin.

"You could say I'm a little more confident in my game," Martin said with that smirk. "It's a new year. Last year I was hurt. This is a new year, fresh start. We have a lot of guys around here who have the passion and the fire to win and I feed off of that."

A switch flipped this offseason. Even though rumors of second-year rusher Charles Sims becoming the starter rolled in, Martin eliminated some bad habits and lost weight while keeping his power. You can tell when you watch him run and again when you check out the stats. He's back.

"[I]f you watch the guy practice out there, he's finishing every play like a wild man," offensive coordinator Dirk Koetter told the media this week. " ... Watch the practice sheet of Doug Martin. We do these comment sheets after every practice and I'm going, 'Nice finish, (No.) 22. Nice finish, 22.' That’s on my sheet about 50 times a day."

Martin said he's playing with more instinct and less thinking, practicing at full speed to help him play games at full speed. His quickness and just-physical-enough play contributes to his optimism.

It's not a perfect situation, though. The Buccaneers offensive line is still a sore spot (they're to partially blame for Martin's slow start against the Browns) and injuries are still a factor. He tore his labrum in 2013 and dealt with a bunch of minor injuries in 2014 on top of a stymied offense that didn't even have the coordinator they hired to call plays on the field.

But if there's one last kick to make Fantasy owners buy into Martin, it's that he was the team's running back on 20 of its first 22 plays. That would be a 90-10 split of work with backup Charles Sims. That's the definition of a three-down running back.

Throw in a little confidence after two years of disappointment and there's real belief that Martin can be a contributor this year. A lot of people won't take Martin in Fantasy drafts because they think he's a dud. They're not paying attention. Martin should be in position to have a very good year, making him a No. 2 running back worth a pick starting in late Round 4.

For a guy who's never been as low as a Round 4 pick in Fantasy, and for a potential bell cow running back, that's a good deal.

Be confident. Martin is.