Benn, who scored 40 seconds into Saturday night’s 5-2 win at Tampa Bay, has three goals in two games.
Dallas made it 2-0 just 39 seconds into the middle period when Seguin scored his 36th of the season during a power play.
Seguin’s shot from the left circle went off the stick of a Florida defender and into the net, giving Seguin his fourth goal in four games.
The Stars also struggled against Tampa Bay on Saturday, when they nearly blew a three-goal lead before pulling away in the third.
“Tough points to lose, it wasn’t a good game for us,” Seguin said. “No excuses even though it was back to back. We expect better.”
NOTES: Pirri has a four-game point streak and has 12 points in 15 games. … Benn has 21 points in 19 games. … Dallas G Tim Thomas, traded by Florida to the Stars on March 5, didn’t play. Thomas has been in just two of the past 10 games. … Dallas forward Ray Whitney missed his second consecutive game because of a lower-body injury.