After 24 NHL seasons, former Boston Bruins captain Zdeno Chara is hanging up his skates.

Chara announced on Instagram Tuesday that he will be signing a one-day contract to retire as a Bruins.

"After 25 seasons of professional hockey 1,680 NHL regular season games, 200 Stanley Cup Playoff games, and hundreds of international games I am proud to announce my decision to retire from the National Hockey League," Chara wrote on Instagram. "In doing so, I am honored to return to TD Garden today to sign a one-day contract with the Boston Bruins and officially finish my career with the team that has meant so much to me and my family. There are so many people that have helped contribute to my success, including all of you, and I look forward to properly thanking everyone this afternoon.

"Thank you, Big Zee"