AL East Notes: Jones, Cooper, Ellsbury

It was on this day in 1945 that Jackie Robinson (along with fellow Negro League players Marvin Williams and Sam Jethroe) participated in a tryout for the Red Sox at Fenway Park.  None of the trio were signed and Robinson signed his ground-breaking contract with the Dodgers later in the year.  The Red Sox ended up being the last team to integrate its roster — Pumpsie Green appeared in a game as a pinch-runner on July 21, 1959, over 12 years after Robinson's Major League debut.

Here's the latest from the AL East…

• If Adam Jones hasn't signed a contract extension with the Orioles by July, the team should consider a trade, opines Steve Melewski of MASNsports.com.  Jones and the O's discussed a multiyear deal over the winter but talks were tabled.  The 26-year-old has only helped his case for a big contract with a hot start to the season (a 1.052 OPS though Sunday's action) and has one more year of arbitration eligibility before potentially hitting the free agent market after the 2013 season.  A Jones trade would be an unpopular move in Baltimore but the Orioles would undoubtedly receive a good haul of prospects in return for the center fielder.
• With Edwin Encarnacion and Adam Lind filling the Blue Jays' DH and first base spots, minor league first baseman David Cooper could become trade bait later this year, writes MLB.com's Gregor Chisholm.  Cooper posted a .974 OPS at Triple-A last season and led the Pacific Coast League with a .364 average but hit just nine homers, leading to doubts about whether he has the power to contribute at the Major League level.
• The Red Sox have enough hitting to weather the loss of Jacoby Ellsbury, writes Jon Paul Morosi of FOX Sports, but the team's key problem is still its lack of rotation depth.  In the same piece, Morosi notes that the Giants also have the bullpen arms to survive Brian Wilson's season-ending elbow injury but could have an unexpected starting pitching problem of their own if Tim Lincecum continues to struggle.