Rickard Rakell had a goal and an assist, Kevin Hayes scored, and Tristan Jarry made 14 saves for the Penguins (18-19-8), who have lost six of seven (1-3-3), including 5-0 to the Ottawa Senators on Saturday.
"They're two different games. I mean, yesterday, we didn't really give ourselves a chance at all,” Pittsburgh captain Sidney Crosby said. “Tonight, I thought we deserved better, but you don't get points for playing well. You’ve got to find a way to win games.”
Rakell put the Penguins ahead 1-0 at 14:20 of the first period on his team-leading 22nd goal, a wrist shot from the slot off a pass from Bryan Rust.
Tampa Bay was outshot 14-2 in the first and had one shot on goal at 5-on-5.
“A lot of guys stepped up and said we needed to be better,” Cirelli said. “Obviously, that’s not the way we wanted to come out. They pushed. I thought we regrouped out there in the first. We just have to be a lot harder to play against, we have to be a lot faster, bring a little bit more emotion to the game. I thought, as the game went on, we did that.”
Hagel tied it 1-1 on the Lightning’s fourth shot at 6:54 of the second period. He carried the puck around Erik Karlsson to the left face-off circle before scoring with a wrist shot for his 20th goal.