Cooley completes hat trick with second left before Mammoth stun Pens in OT

PITTSBURGH -- Logan Cooley completed a hat trick against his hometown team with a second left, Mikhail Sergachev scored at 3:27 of overtime, and the Utah Mammoth stunned the Pittsburgh Penguins 4-3 on Thursday night. After Ben Kindel put the Penguins ahead 3-2 with 25 seconds left, Cooley -- playing his third NHL game in Pittsburgh -- batted the puck in from the left side of the net for sixth goal in four games and seventh of the season. Cooley became the third Pittsburgh native with a hat trick against the Penguins, joining Brandon Saad and R.J. Umberger.