Matthew Tkachuk's second straight overtime goal beat the Carolina Hurricanes, 2-1 on Saturday night giving the Florida Panthers a 2-0 series lead heading back to Sunrise for Game 3 on Monday.  Tkachuk scored on the power play less than 2 minutes into overtime for the win.  But, it was probably Carolina's power play that really did in the Hurricanes.  The Canes had three chances wtih the man advantage and each started out fine, but fizzled amid a sea of poor passing.  And, in the second period, about a minute after Aleksander Barkov came out of the penalty box, he was left alone in front of the Canes' net and he beat Antti Raanta to tie the score.  Raanta made 24 saves in the loss, his second straight hard-luck loss in the playoffs.  Raanta was also in net for Carolina's 3-2 loss to the Islanders in Game 5 in the opening round.  Jalen Chatfield scored the Hurricanes only goal at 1:43 of the first period, redirecting a Sebastian Aho pass through Sergei Bobrovsky for a 1-0 lead.  Bobrovsky has stopped 100 of 103 Hurricanes shots in the series for a .971 save percentage.