Tragic Loss: Toronto maple leafs Head Coach Announces the death of a talented Player Confirmed dead in a…

As well as the Toronto Maple Leafs have been rolling their lines this season, there is one unit of more concern than others.

Auston Matthews’ top unit is winning shifts regularly. The BMW Line has formed fast chemistry and generates high-danger chances aplenty. And Craig Berube has already established more trust with his fourth unit than his predecessor ever did.

But the third unit of John Tavares centering Nick Robertson and Pontus Holmberg has been decidedly underwhelming — getting outshot 7-3, outscored 1-0, and generating just 22.6 per cent of expected goals when on the ice together.

That group was also the target of Berube’s strongly worded wakeup-call timeout during Wednesday’s win over the Kings.

So, it makes sense that the coach is making an adjustment for Monday’s divisional tilt against the Tampa Bay Lightning.

Pacioretty re-enters the middle six and the second power-play unit, after sitting eight days as a healthy scratch.

Berube chalks up the decision as wanting fresh legs, but he needs more from the Tavares line.

“I think that we haven’t gotten a real makeup yet with Johnny being sick,” Berube said.

Holmberg had an impressive camp but has looked a step behind since. And Robertson, who was arguably the Leafs’ pre-season MVP, is still hunting his first point of the real season.

The fulcrum of that unit, though, is the 34-year-old Tavares, whose battle through last week’s bout of bad health may have been understated.

The centreman lost eight pounds and some jump.

He admitted Monday that he’s just now getting back into the swing of things.

“It was a real difficult illness I had there for a few days. So, take some time to kind of rev things back up this week,” said Tavares, who believes a couple of days off at home will be of benefit. “I need to get back into the rhythm.”