They couldn't sustain it.
"We'd be concerned if we weren't getting the chances," Rangers captain Ryan Callahan said. "We had 40-something shots. You get those chances on a nightly basis, you're going to get more than one goal easily."
The Rangers played yet another sluggish and uninspired first period, as they have done in a recent trend, and fell behind 1-0 despite holding a 12-7 shots edge in the frame.
"I don't think our start was great, but it wasn't as slow as some of the other ones," Rangers coach John Tortorella said. "I don't think it was us overlooking them."
Florida grabbed the lead during its only power play of the period. T.J. Brennan faked a shot at the right point and slid a pass across the zone to defense partner Campbell, who fired a slap shot from the upper inside edge of the right circle that appeared to clip the stick of Rangers defenseman Ryan McDonagh before it sailed past Lundqvist at 8:22. It was Campbell's seventh goal of the season.
The Rangers didn't look much better in the second, and they were booed off the ice as they trudged to the dressing room down by two goals.
"What's frustrating is you look at the game, and we have enough chances to tie it up earlier, but we're not doing it," Lundqvist said.
Again, New York got the best of Florida in shots — this time 15-9 — but only one puck found the net.
During a scramble in front, Lundqvist stopped a shot by Jack Skille, but he couldn't keep Upshall from popping in the rebound at 4:28.
Markstrom was much busier at the other end. He had a scare when a shot got behind him after it struck the post and slid dangerously through the crease. Markstrom then made a good stop to deny Gaborik's backhander from in front late in the second.
NOTES: The Panthers are 32-5-13 since the 2011-12 season when they score the first goal. ... The Rangers had their highest shot total since they had 47 against the Islanders on March 15, 2011. ... Rookie LW Chris Kreider was back in the New York lineup for the first time since Feb. 26, his last game before being sent down to Connecticut of the AHL. ... Referee Jean Hebert was tended to by the Rangers' training staff after his mouth was bloodied in the first period. He remained in the game.