Red Sox Notes: Matsuzaka, Lackey, Martinez

On this date nine years ago, Red Sox ace Pedro Martinez disposed of the Mariners in the first inning by striking out the side on nine pitches. Today, the outlook isn't nearly as rosy for Boston, which is above .500 for the first time this year. Here's the latest: 

• The Red Sox announced that Daisuke Matsuzaka experienced elbow tightness during his last start. An MRI confirmed that the right-hander appears to have a sprained ulnar collateral ligament and strain to his common flexor mass. The Red Sox will re-examine him in two weeks.
• Boston's other injured starter, John Lackey, received a cortisone shot in his right pitching elbow, according to Sean McAdam of CSNNE.com (on Twitter). 
• Tonight, Victor Martinez returns to Fenway Park for the first time this season. Back in March, Alex Speier of WEEI.com explained that the Red Sox didn't offer V-Mart more than $42MM in guaranteed money, but believed he would have returned if they had matched the Tigers' $50MM offer.
• Peter Gammons weighed in on all things Red Sox earlier today.