Henrik Zetterberg saw the puck go up in the air and his heart sank just a little lower, his gut tightened. Zetterberg mouthed, “Oh my god,” when he sent the puck over the glass late in the third period Sunday night at the Honda Center. His Detroit Red Wings had a 3-1 lead in Game 7 against the Ducks, and that little play just gave Anaheim a power play. The Ducks converted, but the Wings still won, 3-2, and Zetterberg could laugh off the incident. “I don’t know how many of those I have in my career,” he said, smiling, “but it’s not many, and it was a really stupid time of me to take that one. “I made it way too interesting than it should be.” Zetterberg scored the first goal of the game and assisted on the game-winning goal. He finished the series with a team-leading eight points, seven of them coming over the last three games. When teammates saw what happened, their only thought was to get through it, to keep going. When Francois Beauchemin’s shot went in off Jonathan Ericsson, teammates didn’t flinch. Zetterberg deserved better. “He’s been such a great leader for us,” goalie Jimmy Howard said. “The first that entered my mind was, ‘Let’s kill this off for him.’ He played another tremendous game for us. It was just an unfortunate bounce for him.”