Until he just couldn't do it anymore. Letang didn't play after Feb. 21 last season. He missed Pittsburgh's final 23 regular-season games, then had surgery in April and was done.
Getting back was harder than he thought it would be.
"I got cleared to work out in July, so I didn't get much time," Letang said. "I skated the last week of August, came to training camp and boom, I was pushing myself to go through more exhibition games, to play 25 minutes. But once you get into the real season, your body is not there. It took time. I didn't think it would be that way, but I learned the hard way."
Although he was selected to play in the 2018 Honda NHL All-Star Game, Letang looked like a shell of himself for most of the first half of the season. His defensive game was off, inconsistent. Back-to-back games, he said, were killing him.
He had 28 points (three goals, 25 assists), but he was minus-13 despite being having a 54.95 shot-attempts percentage (SAT) through 48 games at the All-Star break. There were glaring errors that led to Grade A scoring chances against.
"I was putting up the points, but just defensively and sustaining consistency playing against first lines every night, it was just too hard," Letang said. "It looked like I didn't have it, like I was not there mentally and physically."
Penguins coach Mike Sullivan was undeterred. He kept running Letang out there, giving him the toughest assignments, playing him in every situation.
Letang led Penguins' defensemen in ice time per game (25:31), power-play ice time per game (3:36) and shorthanded ice time per game (2:46) at the All-Star break.
"I just believe in him," Sullivan said. "I think he's an elite player. He wants to do everything he can to try to help us win. We knew when he'd come back off a difficult surgery and rehab process that he was out for such an extended period that it wasn't going to happen overnight and that we were going to go through some growing pains again. Kris and I had that talk before training camp started, but our coaching staff just believes in him. I felt It was important that we continued to show faith in him through the ups and downs."
That faith is paying off.
Letang had 23 points (six goals, 17 assists) in 31 games after the break. He was plus-4 and had a 55.30 SAT. The defensive breakdowns were few and far between. His consistency level was strong.