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Steven Stamkos is back in the Tampa Bay Lightning lineup and Martin St. Louis is on his way out.

Lightning general manager Steve Yzerman dealt his No. 1 right-winger to the New York Rangers prior to Wednesday's 3 p.m. ET NHL trade deadline in exchange for fellow captain and forward Ryan Callahan and a pair of draft picks.

The Rangers are sending the Lightning a conditional second-round pick in 2014 which would become a first-rounder if New York reaches the Eastern Conference final this season. The teams would also exchange selections in the 2015 draft — with the Rangers acquiring the Lightning's second-round pick while Tampa would get New York's seventh-rounder — should Callahan, an impending unrestricted free agent on July 1, sign with Tampa Bay.