Aroldis Chapman came back to the New York Yankees like a boomerang. After being dealt to the Chicago Cubs at the trade deadline and helping the Cubbies capture a World Series, the two sides are reunited in what is the richest deal for a reliever in Major League Baseball history. Five years, $86 million. For immediate reaction on the blockbuster signing we reached out to the best in the business, ESPN's Tim Kurkjian, and he joined us on Big Board Sports.