Morning Roundup: Mayweather dominates, Horses race in Kentucky

• Nationals
• Stammen and Walker combine for 6 earned runs, trowing error by Morgan allows another. Nationals fall to the Marlins 7-1. [CBS]
• Is Tyler Clippard being used too much? [Nationals Journal]
• Marquis is waiting for the team to return from the road before he begins throwing. [Nationals Journal]
• Orioles
• Orioles bats come alive and out pace the Red Sox 12-9 in last night's home run fest. [Baltimore Sun]
• Kevin Millwood will attempt to get his first win and lead the Orioles to their first series sweep today at 1:35pm. [ESPN]
• Terrapins
• Greivis Vasquez could be a second round draft pick. [Testudo Times]
• National News
• In a more engaging fight than fans are used to Mayweather dominates, gets unanimous decision. [CBS]
• Calvin Borel rides Super Saver to his third Kentucky Derby win. [Houston Chronicle]