“Chucky,” captain Aleksander Barkov said, “welcome back.”

Matthew Tkachuk had two power-play goals and an assist in his first game after a two-month absence and the Florida Panthers opened defense of their Stanley Cup title with a 6-2 win over the Tampa Bay Lightning in the opener of the teams’ first-round playoff series.

Matthew Tkachuk returned to the lineup and was back to his old self quickly for the Florida Panthers on Tuesday night