FRIBOURG, Switzerland — Sidney Crosby shared a laugh with Macklin Celebrini during Team Canada’s practice on Wednesday, and as usual, stuck around on the ice long after most of his teammates had called it a day.The original “Kid” was having a blast with Canada’s youngsters. He didn’t look like someone who would be hanging up his skates anytime soon.That’s because he isn’t.Crosby had just endured, on some levels, one of the most frustrating seasons of his life. He wasn’t able to take the ice in February, with the Olympic gold medal on the line between Canada and the United States. A freak knee injury in the quarterfinals robbed him of that experience. Canada fell in overtime, with Crosby sidelined. We’ll never know if he would have won his third gold medal had he played.Two months later, Crosby made his grand return to the Stanley Cup playoffs, the stage he craves like nothing else. His Penguins looked utterly out of sorts in the first two games of the series against the Flyers, ultimately falling to the team Crosby hates the most.Add it all up, and the Penguins captain could be forgiven if he were brooding this offseason. He couldn’t possibly have even been expected to travel to Europe for the IIHF World Championship, for that matter.And yet, there he was, a big smile on his face. It would appear that he’s enjoying the game as much as ever and that he’ll play another five years, even if he’s about to turn 39.“Ha,” Crosby told The Athletic on Wednesday, his face pondering the idea. “That would be nice.”After his last-minute addition to the team, Sidney Crosby passed the torch to Macklin Celebrini as Canada’s captain for the IIHF World Hockey Championship. (Fabrice Coffrini / AFP via Getty Images)When Crosby met with reporters following the Penguins’ loss to the Flyers, he said that he would be taking a year-by-year approach to the rest of his career. It’s the first time he’s ever spoken of his career in such a short-term window.Does that mean that there’s a possibility that next season could be his last? Crosby, after all, is only under contract for one more season.