Pettitte Will Not Testify at Public Hearing  —  WASHINGTON — Roger Clemens and Brian McNamee will face off at a hearing of the House Committee on Oversight and Government Reform on Wednesday without any testimony from two other ballplayers or a steroids distributor who had also been scheduled to testify …

IT'S A SETUP  —  JOBA STARTS YEAR IN 'PEN  —  Joba Chamberlain will prepare during spring training as a starter, but will begin the season in the Yankee bullpen barring injury to any of the other five main rotation members, team officials confirmed to The Post.

Twins pick up free-agent hurler Hernandez  —  Ken Rosenthal has been the senior baseball writer for FOXSports.com since Aug. 2005.  He appears weekly on the FSN Baseball Report and MLB on FOX.  —  Livan Hernandez, who lingered on the free-agent market far longer than anticipated, finally has found a new team.

Mets sign right-handed pitcher Tony Armas Jr.  —  FLUSHING — The New York Mets today signed right-handed pitcher Tony Armas, Jr. to a minor league contract and invited him to spring training.  —  Armas, 29, spent the entire 2007 season as a member of the Pittsburgh Pirates.

Rocker throws A-Bomb at A-Rod  —  John Rocker may have a new enemy in New York City.  —  The loudmouth former reliever said he and then-Rangers teammate Alex Rodriguez, among others, were advised in spring training of 2002 by management and players' union doctors on how to use steroids in a way that is “not going to hurt you.”

Hansen wins the battle against snoring  —  Red Sox reliever Craig Hansen talked at lenghth about his battle with sleep apnea, having undergone surgery for the condition in early November.  The difference is remarkable, especially after having gone through the tests performed at Massachusetts Eye and Ear.

Pelfrey Looks to Make Mets' Decision Difficult  —  PORT ST. LUCIE, Fla. — Mike Pelfrey is alone.  Not stranded-in-the-Sahara alone.  He did, after all, have a 2 p.m. tee time Monday with John Maine, Duaner Sánchez and others.  But still, he is the only member from a group …

Single-game tickets on sale March 4, with prices  —  I'll cut-and-paste the release.  The prices (sorry it's not a very readable chart) are below, as is the promotions schedule:  —  NATIONALS INDIVIDUAL GAME TICKET SALES BEGIN ON TUESDAY, MARCH 4  —  AT 9:00 A.M. FOR THE INAUGURAL SEASON AT NATIONALS PARK

Five Story Lines for Spring Training  —  With an eye on the future, the Orioles will be sifting through their in-house talent to determine which pieces will fit for the long term and which probably won't.  In some cases, that distinction is clear.  Right fielder Nick Markakis is the center of the Orioles' youth movement.

Atkins' rich deal full of incentives  —  Garrett Atkins no longer is under wraps, thanks to Under Armour.  If you watch closely, the Rockies' third baseman makes a cameo with San Francisco 49ers tight end Vernon Davis in the Under Armour commercial that aired during the Super Bowl.