MLB News Dodgers get speedy Ruiz in trade with AthleticsHerrera hammers 3 HRs in first for Cards catcherStudy: MLB average salary tops $5M for 1st timeAlonso's big night sends Mets past Marlins in 11Sources: Padres' Merrill lands $135M extensionRed Sox, rookie Campbell reach 8-year extensionAgent: D-backs, Marte reach $116.5M extension'Reason he's here': Crochet delivers for Red SoxAn MIT-educated professor, the Yankees and a bat that could change baseballWaiting on Roman Anthony and other prospect news