The Major League Baseball Players Association announced that Kevin McGuiness, a lawyer who has spent a decade heading a lobbying firm in Washington, D.C., has been hired as COO under new union head Tony Clark. The 61-year-old will fill a post that had been vacant since Gene Orza retired in March 2011. McGuiness will start work with the union next month. Tonight's look around baseball.. The Pirates signed starting pitcher Edinson Volquez as a free agent this offseason, but that wasn't the first time they had pursued him, Rob Biertempfel of the Pittsburgh Tribune-Review writes. "When San Diego put me...

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