"This is bittersweet for me," Maroon wrote on Twitter. "I want to start by saying thank you to the St. Louis Blues organization for giving me a chance to play in my hometown and living out a dream that I had since I was a kid ...
"I'm pumped to get the opportunity to play for the Bolts and I can't wait to get down there and meet my new teammates and see all the fans."
The 31-year-old forward had 28 points (10 goals, 18 assists) in 74 regular-season games with the St. Louis Blues last season.
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Maroon had seven points (three goals, four assists) in 26 Stanley Cup Playoff games to help the Blues win the Stanley Cup for the first time in their 51-season history.
"We're very pleased to add Pat to our organization today," Tampa Bay general manager Julien BriseBois said. "He brings size (6-foot-3, 225 pounds) and physicality to our group as well as significant playoff experience. We expect Pat to be a great addition to the roster."
Selected by the Philadelphia Flyers in the sixth round (No. 161) of the 2007 NHL Draft, Maroon has 206 points (88 goals, 118 assists) in 449 regular-season games with the Blues, New Jersey Devils, Edmonton Oilers and Anaheim Ducks. He has 34 points (16 goals, 18 assists) in 73 playoff games.
