PHILADELPHIA—Chris Pronger scored with 2.1 seconds remaining to lift the Philadelphia Flyers to a come-from-behind 3-2 win over the Blackhawks on Saturday.The defenseman took a pass from Claude Giroux and beat a diving Cristobal Huet to the glove side to cap a flurry of scoring that saw all five goals tallied in the final period.The Flyers had tied the game with 2:04 left in the third period when Scott Hartnell corralled a Kimo Timonen pass near the blue line and beat Huet’s stick side for his first goal since Jan. 30.Simon Gagne opened the scoring for Philadelphia 1:18 into the third, getting his sixth goal in seven games when he stopped a Dan Carcillo centering pass in the left circle and fired a wrist shot past a diving Huet.Kris Versteeg tied the game 1:43 later, after a Flyers penalty by Danny Briere set up a Hawk power play. Goalie Michael Leighton stopped Marian Hossa’s shot, but Versteeg poked in the rebound for his third goal in four games.Hossa gave the Blackhawks the lead after taking a feed from Troy Brouwer near the right face-off circle, and rifled a shot high to Leighton’s stick side with 7:09 left in the game.