Jamie-Lynn Sigler dating Nationals infielder Cutter Dykstra

"Sopranos" actress Jamie-Lynn Sigler— who viewers watched grow up into a beautiful young woman— is now dating Washington Nationals infielder Cutter Dykstra, son of former New York Mets star Lenny Dykstra.

Sources told Page Six of The New York Post that the actress ahas been dating Dykstra "for a few months, and things are going really well."

They added, " I haven't seen her this happy in a long time."

Sigler, who lives in Los Angeles, was introduced to the 22-year-old Dykstra through mutual friends, New York Yankees outfielder Nick Swisher and his actress wife, Joanna Garcia.

The speedy Dykstra— who was drafted in 2008 by the Milwaukee Brewers— played for the Nats minor league affiliate the Potomac Nationals last season and batted .212 with 12 stolen bases.

Sigler has previously been linked to New York Jets quarterback Mark Sanchez and her "Entourage"co-star Jerry Ferrara— who played the character Turtle.

It looks like Sigler has gone from a tortoise to a hare.

The older Dykstra was sentenced to three years in state prison earlier this month after a judge rejected his bid to change his no-contest plea to grand theft auto and filing a false financial statement.

Despite Cutter's father's personal problems, he is reported to very happy with Sigler.

After a break together in Florida, he tweeted at her, " Had  an amazing time with you, i miss you so much.  The last week flew by."

For Sigler, she knows how to handle "family" problems.

Bada-bing.

Mark Sanchez Gets Ready For Giants Game With Model Kate Upton

Things just keep getting better for Mark Sanchez—if you don't count last week's 45-19 drubbing by the Philadelphia Eagles.  As the New York Jets quarterback prepares for this Saturday's huge game against same-stadium rivals, the New York Giants, Sanchez has been spotted paying many late-night visits to Sports Illustrated swimsuit model Kate Upton's Manhattan apartment.

The New York Post reports that Sanchez has been spotted several times at the sexy Victoria's Secret model's pad since November— usually after games and before practices—sometimes as late as midnight.

Sanchez was spotted in Upton's lobby bringing gifts gifts up to her from a chauffeur-driven Navigator after a charity event last month.

Maybe Sanchez is pulling a Derek Jeter by gifting his dates— except he personally takes the presents up to his lady friends instead of just leaving a swag bag in the limo after they get the heave-ho.

Call Sanchez the anti-Jeter but, this is Kate Upton we're talking about.  I don't think an autographed football and a Jets wristband will float her boat.

A source told the Post, the quarterback has seen coming into her building with bags a minute or two after the beautiful Upton arrived.

"They almost never come in together.  He's always five steps after her," the source claimed, adding that the QB often pulls a woolly cap over his face as a disguise.

Just last week, it was reported that Sanchez was seen with two different women on the same night at a swanky Manhattan hotel.  First, there was an exotic Spanish-looking woman  at 3 a.m., followed by an unknown blond who sauntered into his room an hour later.

Could it have been Upton?

The model's sister, Christie Upton, is a Jets  manager of client relations and works closely with the team.  Kate has been spotted at some Gang Green's games.

Another source said that Upton and Sanchez are "just friends."

Now where have I heard that one before.  Oh yeah, that was with Jamie-Lynn Sigler and Hayden Panettiere.

Sounds like Sanchez has been burning the midnight oil with his black book more than his playbook.