Racing PositionsProspects to watch in the WBC: From the high school son of a former MLB All-Star to the next Mets ace24dKiley McDanielSuzuki to miss Cubs' opener after injury in WBC13hOrioles option Kremer to minors ahead of opener15hPirates reassign top prospect Griffin to minors16hBlue Jays release right-handed pitcher Seabold17hDiamondbacks RHP Kelly to begin season on IL17hRangers cut ex-Red Sox, Cubs reliever Brasier18hOF Slater exercises release clause in Tigers deal18hVeteran OF Grichuk on Yanks' Opening Day roster19hNationals release right-handed reliever Smith19h