A right-handed pitcher who works in the low 90's with his fastball, Mercedes became the second player from the DPL to sign this month and the 30th since the league's second season began three months ago. Right-handed pitcher Darwin Castillo signed with the Royals last week for $300,000. Mercedes is the 71st DPL player to sign since October of 2009.
The Giants have staked a lot on their scouting of young pitchers in recent years, and they won the 2010 World Series on the strength of a starting rotation that featured homegrown arms, in Tim Lincecum, Matt Cain and Jonathan Sanchez.
Mercedes, who will start out low in the team's farm system, has a chance to be another link in the chain.
Spencer Fordin is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.