Gaborik has five goals and one assist during a five-game point streak, while Callahan has scored a goal in three consecutive games and added three assists in that stretch. Callahan's 23 goals are a career high and one more than Gaborik for the team lead.
Lundqvist will likely get an 18th consecutive start after winning six of his last seven games with a 2.26 goals-against average. He's 11-6-1 with a 1.90 GAA lifetime versus Florida (29-33-10), though he made only 13 saves and allowed all the goals in a 4-3 home loss to the Panthers on Jan. 25.
That defeat was the second straight against Florida for the Rangers, who must win Tuesday to salvage a split of the four-game season series.
New York apparently won't have All-Star defenseman Marc Staal for a second straight game due to an undisclosed injury. After Tuesday's practice, coach John Tortorella said on Twitter that Staal is day to day but won't face Florida.
Rangers rookie defenseman Ryan McDonagh is expected to play after avoiding major injury after being elbowed in the head by Pittsburgh's Matt Cooke during the third period Sunday. Cooke was suspended through the first round of the playoffs Monday.
The Panthers are 3-2-1 in their last six games, but the decent play has likely come too late after they dropped nine of their previous 11. They're 13th in the conference, 11 points behind Buffalo for the eighth and final playoff spot with 10 games remaining -- seven on the road.
Florida, loser in four of its last five road games, is opening a five-game trip with the first four coming against teams currently holding playoff spots.
The Panthers failed to generate some positive momentum heading into the jaunt, squandering a third-period lead Saturday en route to a 4-3 shootout loss to the New York Islanders.
Stephen Weiss, Florida's leader with 49 points, has one goal in each of the last three games, matching his total from the previous 18. The center now has a chance to match his career-best four-game goal streak, set Nov. 30-Dec. 5, 2009.
He's found the net only once in 12 career visits to the Garden.
Rookie right wing Evgeny Dadonov had two goals Saturday in his return after missing 20 games with a broken finger.
AccuScore has powered more than 10,000 simulations for every NHL game on ESPN.com, calculating how each team's performance changes in response to game conditions and opponent's abilities. Each game is simulated and the game is replayed a minimum of 10,000 times to generate forecasted winning percentages.