By Zach Koons “Big Z” will finally hang up his skates at the age of 45 after a lengthy and accomplished career. View the original article to see embedded media. Zdeno Chára, the NHL’s all-time leader in games played by a defenseman, announced his decision to retire from professional hockey on Tuesday. The NHL stalwart played 25 seasons in the league with four different teams. Chára shared that he plans to sign a one-day contract with the Bruins on Tuesday before officially hanging up his skates for good. The 45-year-old spent the majority of his career in Boston and helped lead the franchise t…