Share this: There’s no doubt Boston is a premier destination for marquee free agents in all sports. The latest player to take his talents to Beantown is NBA All-Star forward Gordon Hayward, who agreed to . four-year max contract with the Celtics on the Fourth of July. With that in mind, let’s go over some of the top free-agent signings in Boston sports history. Zdeno Chara: The Bruins got their latest franchise defenseman in June 2006. Since then, Chara has tallied 429 points, a Norris Trophy, as well as a leading role in the Bruins’ first Stanley Cup championship in 39 years back in 2011. David Ortiz: “Big Papi” needs no introduction. On January 22, 2003, Ortiz signed a non-guaranteed free-agent contract with Boston, and his legend