Three years after departing for what he thought would be a better fit, Pablo Sandoval has returned.The third baseman, a key cog in the dynasty the Giants built earlier this decade, re-signed with the organization on a minor league deal on Saturday morning. Sandoval will join Class-A San Jose immediately and move on to Triple-A Sacramento on Tuesday. He was in the AT&T Park clubhouse on Saturday to take a physical. Oakland Man Indicted for Attempting to Help ISIS Sandoval, now 30 years old, spent the first seven years of his career in San Francisco, batting .294 with 106 homers amid battles with his weight and inconsistency. The Giants never quite got on the same page with Sandoval when it came to his conditioning, and he alternated between being a valued power hitter in the middle of their lineup and sitting on the verge of being replaced.In Boston, there were no such highs. Sandoval played just 161 games over three seasons, batting .237 with 14 homers, and playing poor defense. He posted a negative Wins Above Replacement in all three seasons with the Red Sox and he was designated for assignment last week. Sandoval twice cleared waivers, so the Red Sox are on the hook for the...