Orioles fire manager Dave Trembley  —  Dave Trembley walks onto the field to argue a call during the first inning of Thursday's 6-3 loss to the New York Yankees.  He compiled a 187-283 (.398) record guiding the club, the second-worst winning percentage of any manager in Orioles history.

Following Jim Joyce's perfect game call, Bud Selig's stance on instant replay not popular, but right  —  While Bud Selig fiddled with what to do about Armando Galarraga's lost perfect game Thursday, the rest of baseball, along with outraged fans around the world, fumed - renewing the cries for the increased use of instant replay.

Kotchman sets errorless chances mark  —  Unseats Red Sox's Youkilis for Major League record  —  SEATTLE — The play that ended the top of the second inning in the Mariners' 4-1 win against the Twins on Thursday night was nothing special.  —  A routine grounder by Nick Punto …

Poor defense is catching up to the Nationals  —  Two crucial issues for the Nationals - one present all year, one just surfacing now - converged in the most devastating way and at the cruelest time Thursday.  The Nationals have been unable to identify a consistent right fielder this season …

Mock Draft 2010  —  1. Washington Nationals: This is now a no-brainer.  Over the course of the spring, we've slowly gone from “Will they take Harper?” to “Will they sign Haper?” to “How much will they pay Harper?”  He's going No. 1, and you could even end up seeing a creative deal that …

Oliver Perez may once again be faced with minor league demotion when New York Mets call up Jon Niese  —  SAN DIEGO - Oliver Perez, sweating after a session in the weight room, flopped onto a couch in the clubhouse at Petco Park on Wednesday.  He laughed and joked with Jose Reyes, then rose and walked to his locker, next to Ike Davis'.

Jose Canseco testifies before grand jury investigating Roger Clemens for perjury, blasts proceedings  —  WASHINGTON - After spending two hours Thursday testifying before the grand jury that will determine whether Roger Clemens will be indicted for perjury, Jose Canseco blasted …

Streaks: Braves win 9th straight  —  LOS ANGELES (AP) — Troy Glaus is picking up right where he left off in May, when he earned NL player of the month honors.  —  Glaus homered for the fourth time in five games and drove in Atlanta's first two runs in a 4-3 victory over the Los Angeles Dodgers …

Vlad may return to lineup Friday  —  CHICAGO — Vladimir Guerrero was out of the Rangers' lineup Thursday for the second consecutive game with significant swelling around the left eye.  Guerrero was hit by a batted ball that ricocheted off the batting cage while he was taking batting practice before Wednesday's game.