If ever there was a play that depicted the Bruins' struggles during the final 40 minutes of yesterday's Game 4 loss, it was Tomas Kaberle's miscue that led to Tampa Bay's game-tying goal just past the midway point of the second period.

Kaberle went back to retrieve the puck below his own goal line before Sean Bergenheim closed in, stripped the puck and skated out front to beat goaltender Tim Thomas and even the score at 3.

After trailing 3-0 in the first period, the Lightning took advantage of numerous Bruins turnovers and went on to win the game 5-3 at the St. Pete Times Forum. The Eastern Conference finals series is now tied at two games apiece.

"I lost it between my legs there," Kaberle said. "I just have to make sure I have to be sharper on that play, and that's one of those games you have to learn from."

The defenseman had a hand in the game-winning goal by Simon Gagne, as well. After Milan Lucic turned over the puck a stride past the Bruins blue line, Ryan Malone skated toward the opposing net and bumped the puck back to Gagne, who put Tampa Bay ahead for good 6:54 into the third period.

Kaberle, who had just blocked a Lightning bid before the Lucic gaffe, basically glided back toward his own goal and tried to block the shot rather than attack the puck-carrier or pick up Gagne.

"We were getting out of the zone and then we turned it over in the neutral zone again and they came back, and (Dennis Seidenberg) blocked a shot, and it bounced off their stick, obviously," Kaberle said. "I tried to block it again. It's tough luck on that one.