By Daniel Bates One of the last big dominoes of the MLB free agency fell Sunday when shortstop Trevor Story agreed to a massive deal with the Boston Red Sox. According to Bob Nightengale of USA Today, Story and the Sox came to terms on a six-year deal worth $140 million. The Story news got a ton of reaction from the baseball world on social media. “… After looking at multiple structures with multiple teams, Story gets big money from the Red Sox — and an opt-out after four,” reported ESPN’s Jeff Passan. Noting, “Another big bat for Boston.” “Trevor Story has agreed to play 2B for Boston,” added…