"This guy, he probably doesn't even need to practice," Hynes said. "His attention to detail, his understanding of how to play in certain situations, the reads he needs to make, the sort-outs he needs to make, particularly on the defensive end. He has excellent habits, his stops his starts, he takes good angles, has a good stick. He does all the little things it takes to play against top players.
Most often, he has been out against the Tampa Bay's top line, featuring Nikita Kucherov and Steven Stamkos, two of the best players in the NHL. Each has had success on the power play, but it has been tougher sledding during 5-on-5 play, especially for Stamkos, who has two even-strength assists among his five points.
"They play with a lot of speed and they are tenacious on the puck," Zajac said, "so you can't take any time off against that team, and I think that is where it mentally and physically drains you."
Yet Zajac keeps going over the boards, no matter the stress of the workload. He followed his 25-minute outing with 19:18 in Game 4.
"Twenty-five minutes for a center is incredible," Boyle said. "That's like 35, 40 minutes for a [defenseman], incredible. I've played both [positions] and don't let the 'D' fool you, it's way harder to play center. To play that many minutes and those hard minutes against such an offensive group where you have to be dialed in, that's impressive."
The task will get more difficult in Game 5. Not only do the Devils need to win, but the Lightning have the advantage of the last change.
Tampa Bay coach Jon Cooper can try to get his top players away from Zajac if he chooses. Hynes will have to counter by relying even more heavily on Zajac, who played 18:33 in Game 1 and 21:04 in Game 2, each on the road.
"I've always been in awe of Trav," Devils forward Kyle Palmieri said. "He's a guy that doesn't always get a whole lot of attention and the things he does and his ability to be an impact player is one of the things that makes him such an incredible player, person and leader for us.