Matthews had two points (goal, assist) in the series. That ranks 104th in NHL playoff scoring. Nine Maple Leafs -- Mitchell Marner, Patrick Marleau, Morgan Rielly, James van Riemsdyk, Tomas Plekanec, Tyler Bozak, William Nylander, Zach Hyman and Connor Brown -- had more points than he did.
"I thought the first half of the series my play probably just wasn't good enough," Matthews said. "And then the second half of the series I had chances. I thought I did things right for the most part and couldn't capitalize on the opportunities. Sometimes that happens.
"It's frustrating, for sure. You always want to contribute on the scoresheet."
Even more frustrating for Toronto: An opportunity lost after establishing a record for regular-season points (105) and rallying to win Game 5 and Game 6 to tie the series 3-3.
"These are the moments we hope to be in in the future," Matthews said. "We have to find a way to make the most of it. We were in good position, up by one in the third, and a couple of mistakes cost us.
"They're at home, they have home-ice advantage, the crowd was buzzing, next thing you know there's two in the back of our net and we're chasing the game."
It was an all-too-familiar scenario for Maple Leafs forward Nazem Kadri.