NY Jets superstar Antonio Cromartie -- the dude with 10 kids (and 2 on the way) -- is in danger of losing the house he bought with his mom back in 2006 ... right AFTER he became a multi-millionaire ... TMZ has learned.

Cromartie is being sued by the Bank of NY ... for allegedly blowing off $105,381 in missed mortgage payments on an 864 sq. foot home he bought in his hometown of Tallahassee, Florida in November '06.

According to Zillow.com, Cromartie bought the house for $135k. Docs show he co-signed on the loan with his mom right after he was selected in the 1st round of the 2006 NFL Draft  ... and they locked in on a ridiculously high 9.7% interest rate.

Bank of NY claims Antonio stopped making payments in 2010 ... and now it wants a judge to force the Pro Bowler to hand over the keys to the property AND make good on his mortgage payments ... plus interest.

We're guessing the bank is aware of the MASSIVE contract he signed with the Jets last year ... 4-years, $32 million ... which probably isn't that much considering he's got 12 mouths to feed ... plus baby mamas.

Calls to Cromartie's reps have not been returned.

Tim Tebow clearly knows how to impress his new boss ... cause the NY Jets QB went out and got himself a pedicure in L.A. this week.

TMZ obtained a pic of Tebow in the chair at MB Nails in West Hollywood on Tuesday ... moments before technicians went to town on his fingers and toesies.

Sources at the salon tell us Tebow was "VERY friendly" during his $23 mani/pedi treatment ... and dropped a HUGE tip at the end.

Manicured feet are important to pro athletes ... especially when they're playing for Rex Ryan.

Tim Tebow's new teammate wasn't being generous when he willingly gave Tebow his #15 jersey -- Tebow's old number on the Broncos -- because it's CURSED ... at least according to its former owner.

In case you didn't know -- #15 on the Jets was previously worn by wide receiver Scotty McKnight, who was re-signed by the Jets just two days ago.

But Scotty doesn't have fond memories of wearing the jersey -- getting minimal playing time during last year's preseason, and eventually getting bumped to the Jets practice squad where he tore his ACL.

Now, sources close to Scotty tell us, the WR is pumped to start fresh with a new number -- and sees Tebow taking the jersey as a blessing ... relieving him of his bad luck

Good news for Hayden Panettiere too -- because she's dating the guy.

Tim Tebow's not second-string to Nike -- because the athletic company is now suing Reebok ... over the exclusive rights to use Tebow's name on merchandise.

Nike filed a lawsuit against Reebok this week -- just one day after the Jets officially announced the Tebow trade -- and according to the suit, Reebok's new Jets merch bearing Tebow's name (above) is in violation of a 2010 Nike-Tebow endorsement deal.

According to the deal, Nike's got sole merchandising rights to all things Tebow ... and Nike alone.

A rep for Nike released a statement, claiming, “We have filed a complaint relating to unauthorized use of Tim Tebow's name on New York Jets related apparel. Nike is authorized and licensed to use Tim Tebow's name on products."

It’s unclear what apparel Nike's specifically bitching about -- but Reebok’s 10-year, $250 million apparel deal with the NFL expires this month. Nike is slated to take over in April with a 5-year deal, worth roughly $35 million a year.

As for the 2010 endorsement deal -- Nike made off like a bandit, signing Tebow before his jersey became one of the most sought-after in the league ... for $300,000 a year.

TMZ just spotted NY Jets head coach Rex Ryan at Newark Airport in NJ ... and we asked the million dollar question -- who will be the next starting QB for the NY Jets ... Tebow or Mark Sanchez!?!?

And BTW ... Rex actually answered.

At first, it sounded like he said, "BOTH" ... which made sense because there are rumors that the team would run a wildcat offense ... which usually features 2 QBs.

Upon further review ... we realized Rex was saying, "Bo" ... but not Te-Bow ... Bo ... as in NY Jets starting nose tackle Sione "Bo" Pouha ... a 6'3", 325-pound beast.

Nice deflection, Rex.

Here's former Denver Broncos QB turned (possible) newest  member of the NY Jets Tim Tebow (left) -- and current Jets QB Mark Sanchez (right).

Question is ...

Tim Tebow's impending arrival to the NY Jets came as a complete shock to several members of the organization ... and TMZ has learned the news has already created a rift between the players.

Sources connected to the Jets tell TMZ ... a bunch of players were working out in the gym at the Jets training facility when the news broke that Tebow had been traded.

We're told several players got into a pretty heated conversation about the move ... with multiple Jets complaining he's "overrated."

But Tebow DOES have supporters ... we're told multiple players argued that he's a good guy with real potential ... and will be a good backup for Mark Sanchez.

As one player put it, "If nothing else, he will make us a more holy squad."

The Lord works in mysterious ways ... 'cause  Tim Tebow has just been traded from the Denver Broncos to the New York Jets ... this according to FOX NFL insider Jay Glazer.

According to Jay ... the Jets had to give up a 4th round draft pick and a 6th-round pick in exchange for the former Heisman Trophy winner ... and got an additional 7th round pick in return.

The Jets already have a starting quarterback in Mark Sanchez ... but if Sanchez chokes again ... like he did last season ... Tebow could be in a good position to take over the #1 spot.

Story developing ...

Touchdown-machine Santonio Holmes better not get too attached to his giant new paycheck from the Jets -- because TMZ has learned, a woman he knocked up back in 2002 wants a fat raise ... in child support.

Just months after Holmes signed a 5-year deal with the Jets worth nearly $50 million, a woman named Nicole King has filed a petition in Florida for child support modification ... demanding way more money from the star wide receiver.

King cites Holmes' new contract in the docs -- claiming, "There has been a substantial change in circumstances in that [Holmes'] income has substantially increased since the entry of the final judgment and the needs to the child have increased."

King doesn't specify how much extra cash she wants now that Holmes is rolling in more dough than ever -- but according to the current child support order, Holmes is already required to pay the woman $4,000 a month ... and even buy her a house.

Pity Holmes can't also buy his team's way into the playoffs.

New York Jets interception-machine Mark Sanchez might actually have done something right this year ... and her name's Kate Upton -- this according to the super model herself.

Rumors have been spreading like wildfire ... Mark and Kate are an item -- but we asked the buxom Victoria's Secret angel straight up ... are you single ... and she played coy, replying, "What do you think?"

We pressed a little more ... asking if Mark was the mystery man -- Kate hedged, responding, "I don't know!"

As for the real truth -- Kate tells us, "It's whatever you think!"

So here's what we think -- if Mark had any game, he would have AT LEAST made the playoffs.

Uncle Sam must have been THRILLED when Santonio Holmes signed his $50 million contract with the NY Jets back in July ... 'cause it may have helped the NFL star FINALLY pay off a 6-figure tax debt.

TMZ has learned ... the federal government had obtained a tax lien against the former Super Bowl hero back in March to the tune of $175,482.92 ... after Holmes allegedly screwed the IRS out of income tax for 2009.

But back in August -- after he signed the mega-deal -- Santonio paid off the debt  ... and is now even-Steven with the gov ... this according to official docs filed in Florida.

If only the Jets could turn things around that quickly ...