The largest total-value contract in MLB is Giancarlo Stanton's 13-year, $325 million extension that he signed with the Miami Marlins in 2015, now carried by the New York Yankees.
You know Scott Boras would love to break that record. He's the agent for Bryce Harper, who, as you also know, is a free agent who hasn't signed yet. Manny Machado hasn't signed yet, either. Maybe Machado and Harper will break Stanton's record -- or maybe both players will sign a shorter-team deal for a higher-average annual salary. That record belongs to Zack Greinke, who will average $34.