Red Sox improve in rankings despite potential injury to key pitcher

The Boston Red Sox won eight of their last ten games, moving three spots up in the MLB power rankings. However, second-year lefty Connelly Early's diagnosis of elbow inflammation raises concerns for the team's future performance. Manager Chad Tracy indicated there is 'some good news,' but Early will seek a second opinion. As they approach the trade deadline, the Red Sox are under pressure to maintain their current form to avoid significant roster changes.

• 9:30 AMYahoo Sports — MLB power rankings: As Red Sox dig out of big hole, another big loss looms