Jake Long headlines one of two fights at the Dolphins mini-camp and more in NFL Daily Digest.

Knuckle Up: The Miami Dolphins are apparently getting ready to rev up the drama for their upcoming stint on HBO’s Hard Knocks program as today’s mini-camp featured not one but two fights in the trenches according to the Palm Beach Post.

Jake Long is said to have got it on with rookie defensive end Oliver Vernon. Long is said to have gotten over it pretty quickly.

The always-flammable Richie Incognito on the other hand needed “several players” to pull him away from defensive end Ryan Baker.

There is no word forthcoming on who is right and who is wrong as tempers flared, but anytime Incognito’s name is mentioned in connection with a fight or something dirty…yeah.

Dolphins HC Joe Philbin commented on the flare-ups that went down during the non-contact exercises.

“It happens. I don’t know that’s one thing I’ve kept track of. You want good competition, you want the guys to play hard, but be smart. You have to protect one another, especially with no pads; you have to protect one another at all times. We don’t have the luxury of importing guys left and right.

We have to be smart, use good judgment. It’s a physical game, there are going to be injuries, even in practice. We don’t want them to happen, but they’re going to happen. Overall our guys have done an excellent job. We’re going to have to watch the tape to see who provoked the situation that happened today.”

One More Time: The Vikings GM Rick Spielman has said one more time that they are not “interested” in trading WR Percy Harvin.  Let’s see how much of a headache Harvin is about the whole thing.

Today In Bounty Gate:  Saints Interim Head Coach Joe Vitt is saying that he will take a polygraph test to prove his innocence as it pertains to the recent allegation that he chipped in 5k to a fund/kitty/pot that was created to reward any player that took out Brett Favre in the 2009 NFC Championship Game.

“In recent information released by the National Football League to the NFLPA and later to the media, there is an allegation made against me that is completely untrue and I cannot let it go unchallenged,” Vitt said in a statement Wednesday. “I did not pledge any money for any type of incentive program whatsoever pertaining to the 2010 NFC Championship Game.

“Furthermore, I have never at any time pledged any money for any type of incentive program or so called bounty program. Today I had a conversation with Commissioner Goodell and I stated to him that I would sign a sworn affidavit to this effect or I would make myself available to take a lie detector test to rectify this matter.”

Meanwhile, Anthony Hargrove has a former practice squad player by the name of Earl Heyman talking to CBS Sports claiming that it was not his voice on the audio tape demanding that somebody needs to “pay me my money.”

“I was right there, right there in that closeup [of the defensive huddle] they’re talking about,” Heyman said. “Every time they came off the field I was standing right there talking to them, and I know who said it, and I can say with 100 percent accuracy who said it, and I know 100 percent it wasn’t Anthony.”

“I don’t want to incriminate anyone.  I will if I have to, if it goes to court or something like that, I’d testify. But I don’t want to get caught up in this or that or getting more people in trouble. That’s not what I’m about, but I am about protecting Anthony because he’s my friend and he’s been done a great injustice and he’s been done wrong.”

It seems that for every step forward the Saints take two steps backwards.

Quickly:  The 49ers number one pick WR A.J. Jenkins just signed his four-year deal. New Colts coach Chuck Pagano is stepping up to call RB Donald Brown his “every down back,” even as they signed former Steelers RB Mewelde Moore. Plaxico Burress as a Panther? He loves the idea yet neither the club or Pro Bowl Cam Newton has chimed in.