Madison Bumgarner's $12 million contract option for the 2019 season has been exercised by the San Francisco Giants, keeping the 2014 World Series MVP and ace left-hander with the club for at least one more season after his past two years were shortened by injuries. The Giants on Monday also exercised third baseman Pablo Sandoval's option for the $555,000 minimum. In April 2012, Bumgarner signed a $35.56 million, six-year deal through 2017 that included $12 million club options for the 2018 and '19 seasons.