History all that keeps Yankees from releasing Posada  —  BOSTON — The clock ticks against Jorge Posada, marching relentlessly and remorsefully toward the end of his Yankees marriage — a beautiful relationship gone rancid.  —  The clock already has sped up on him this year …

Daniel Murphy out for the season after Mets infielder suffers Grade 2 tear of MCL in his left knee  —  Daniel Murphy misses most of last season with a torn MCL in his right knee.  On Sunday, he suffers a Grade 2 tear of the MCL in his left knee and is done for the year.

Zobrist vs Fielder: A Position Adjustment Primer  —  Yesterday on Twitter, Buster Olney had some thoughts on WAR, and specifically, the way it values middle-of-the-diamond players compared to first basemen.  A few selections from his comments: … There were a few others sprinkled in there as well, but you get the general point.

Strasburg pushes limits in rehab assignment  —  The camera looking down into Municipal Stadium sent out a pixilated version of reality.  All of Stephen Strasburg's(notes) pitches looked linear: no bend, no dip, no dive, no tilt.  Just fast and slow, a miserable way to judge any pitcher …

Tigers Extend Dombrowski, Leyland  —  The Tigers announced that they have agreed to extensions with president and general manager Dave Dombrowski and manager Jim Leyland, whose contracts were set to expire after 2011.  Dombrowski's extension runs through 2015, while Leyland's extension covers the 2012 season.

Cards notes: Freese expected to return Tuesday  —  • Once Cardinals head athletic trainer Greg Hauck received the go-ahead from Major League Baseball sometime during Sunday's game with Florida, third baseman David Freese was cleared to return to action.  That action probably will be Tuesday night at home against Milwaukee.

No second-guessing here on Phils' trades  —  THE MAGIC formula that has propelled the Phillies from contender to World Series winner to baseball superpower, is 17=5.  —  Seventeen minor league prospects (one still to be named) exchanged as needs arose for five extraordinary All-Star talents.

Analysis: What happened to Pirates' pitching?  —  So, what went wrong?  —  The obvious culprit in the Pirates' epic collapse, including the 7-3 loss to San Diego yesterday at PNC Park that extended a losing streak to 10 games, is the pitching that led to their stunning ascent to the top of the Central Division.

Dodgers likely to lose $27 million because of dramatic decline in attendance  —  The Dodgers are averaging nearly 8,000 fewer fans per home game this season, which also affects concession and parking revenue.  The $27 million represents more than a 9% drop in the team's total annual revenue from 2009.