MLB made what seems to be a significant breakthrough in its drug investigation in getting Biogenesis founder Tony Bosch's cooperation. What does it mean? ...more

Baseball showcases what it now calls its 'prime rivals' this week. So why is there so little buzz? ...more

Before the season, CBSSports.com said the Tigers and Nationals would meet in the World Series. Now 3 to Watch tells you they meet this week. ...more

Should the Nationals worry about Ryan Zimmerman's throwing or Stephen Strasburg's arm? As 3 to Watch points out, we'll know more soon. ...more

In the three weeks that John Lackey has missed with a biceps injury, the Boston Red Sox have gone 12-5 and have shown signs of being a serious contender to win the American League East. But while Jon Lester and Clay Buchholz have been brilliant, the rest of the rotation hasn't. 3 to Watch says Lackey's return on Sunday could make a difference. ...more

As Yu Darvish's bid for perfection played out on the visiting clubhouse televisions at Rogers Centre, a few Cleveland Indians players watched. Infielder Mike Aviles remembered back to the time that he faced Darvish last August, when the Rangers right-hander gave up 11 hits -- but still showed he had the makings of an ace. ...more

Every team has an opening day starter. Not every team has a true No. 1 starter. So even though opening day is the one day when the pitching matchups should all be great, this year's list reminds you that isn't the case. 3 to Watch picks the best. ...more

The two teams that could be most affected by MLB's drug investigation in South Florida are the Nationals and Rangers, and sources say both teams are very concerned that they could lose Gio Gonzalez and Nelson Cruz to 50-game suspensions at some point this season. What can they do to prepare? ...more

Chase Headley heads a list of players who filed arbitration numbers on Friday. Headley asked for $10.3 million, with the Padres countering at $7.075 million. ...more

Josh Hamilton was the very symbol of the Rangers' September collapse. Now he's the very symbol of their winter gone wrong, after leaving to sign with their biggest rivals, the Angels. ...more