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The Giants’ ace injured his pitching arm in a non-baseball activity<p>A rough start to the Giants’ 2017 season just got a bit more frustrating, as ace lefty Madison Bumgarner needs to be placed on the disabled list with a sprained left shoulder. The cause?<p>Giants fans are familiar with vehicles …

Read more at CBS Sports: http://www.cbssports.com/mlb/news/dirt-bike-accident-sprains-madison-bumgarners-left-shoulder-sends-him-to-disabled-list/