Ron Hainsey has seen the structure and content of NHL training camps develop quite a bit since he began his NHL career in 2002-03 with the Montreal Canadiens. And the new member of the Maple Leafs blueline can best sum it up in one word: compactness.

"It's shorter now," Hainsey said Thursday after the Leafs continued camp at their west-Toronto practice facility. "When I first started, I think we had five, six days of scrimmage, maybe even like a week before you played a pre-season game. And my first camp, you went through a week of development camp, a week of rookie camp and then regular camp - so camp was five or six weeks. Now it's 20 days, really, and Day One is a testing/medical day, so that doesn't even count. So it's 17 days of on-ice work, and bam - we're going."

1. Senators take early lead, but Marleau's first goal as a Leaf evens things up. After the Leafs opened their pre-season schedule Monday with a 6-2 loss to the Senators in Ottawa, the two teams squared off again - only this time, in the Buds-friendly confines of the ACC. And although the Sens again scored the first goal of the night Tuesday when Logan Brown beat Frederik Andersen on a power play 4:28 into the opening frame, Toronto settled down shortly thereafter and grabbed their first lead of the pre-season as they headed into the first intermission.

The game-tying goal came at 11:26 of the first, and it came from new Leaf Patrick Marleau, who broke in alone to the left side of netminder Mike Condon and snapped a shot up and over him for his first goal in a Toronto uniform. The ACC crowd - who gave Marleau a solid ovation when he was introduced prior to the game - was thrilled to see the veteran score, and they were even happier approximately six minutes later, when Marleau was part of a Buds 5-on-3 power play that led to winger James van Riemsdyk connecting for his first of the pre-season to make it 2-1 Leafs at the 17:09 mark.

Considering the Leafs finished the first period of Monday's game trailing the Senators 4-1, this was a vastly improved performance to start the evening.

1. Sens build big lead in opening period as Leafs struggle to stay out of penalty box. In their first game of the pre-season - and with a roster that was a mixture of NHL mainstays and youngsters trying to earn a spot on the squad - the Leafs found themselves trailing 2:20 into the opening period after a misjudged line change led to a delayed-penalty goal by Senators winger Ty Randell.

Discipline proved to be an issue just 2:05 later, as Ottawa winger Mike Hoffman beat goalie Curtis McElhinney for a power play marker to double the home side's lead. And the Sens made it 3-0 at the 7:08 mark on Hoffman's second of the night. This certainly wasn't the start Toronto head coach Mike Babcock envisioned, but resilience was a hallmark of his team last season, and as the new group gained familiarity among themselves, he no doubt expected some bumps in the road in pre-season.

The Toronto Maple Leafs announced Sunday that the hockey club has trimmed their training camp roster by 24 players. The Maple Leafs now have 49 players (28 forwards, 17 defencemen and four goaltenders) remaining in camp and will be back on the ice for practice tomorrow at MasterCard Centre in split groups beginning at 10 a.m.

As the Maple Leafs gathered in their west-Toronto practice facility to meet the media and head out together to Niagara Falls and kick off training camp Friday, there was an overwhelming sense of optimism in the air - both inside and outside the arena. Following a 2016-17 season in which they surprised a number of people by making the playoffs and pushing the Presidents' Trophy-winning Washington Capitals to six games in their first-round series, Leafs players and management understand their legion of fans now will be looking for at least as much success this year, and with new additions to the roster and the growth of their younger players, the organization believes it has the components to achieve bigger and better things.

Exactly 100 years later, the Next Century Game presented by Scotiabank will be played at Air Canada Centre at a special time of 2 p.m., and see the Toronto Maple Leafs face off against the Carolina Hurricanes.

Here are five takeaways from the Maple Leafs' 4-3 shootout loss to the Ottawa Senators Sunday in the second game of their 2017 Rookie Tournament at Ricoh Coliseum:

1. Leafs shake off Friday loss with stellar start Sunday. The Maple Leafs' rookies were aiming to improve on an uneven performance in Friday's 5-2 loss to the Montreal Canadiens, and that's exactly what happened Sunday against Ottawa: following a great setup by blueliner Fedor Gordeev, winger Mārtiņš Dzierkals scored his second goal of the tournament 90 seconds into the first period to give Toronto a 1-0 lead, and 1:08 later, winger Ryan McGregor capitalized on a scramble in front of Sens goalie Kevin Bailie to score his first and put the Buds ahead by two.
 

Here are five takeaways from the Maple Leafs' 5-2 loss to the Montreal Canadiens Friday in the first game of their 2017 Rookie Tournament at Ricoh Coliseum:

1. Canadiens strike first, but Kaskisuo keeps it close. The opening period of Game No. 1 of the Leafs' three-team tournament (that also includes the Ottawa Senators) was a fast and spirited affair, with the arch-rival franchises displaying the passion that has defined their battles over the past century. Toronto found themselves trailing first in the game after Habs centre Thomas Ebbing took possession of the puck just inside the Buds' blueline, quickly moved in on Leafs goalie Kasimir Kaskisuo, and fired it over his glove to give Montreal a 1-0 advantage at 8:07 of the first frame.

Robidas, a veteran of 937 NHL games, made his NHL debut as a member of the Montreal Canadiens during the 1999-00 season and went on to play 15 seasons in the League, suiting up for the Canadiens, Dallas Stars, Chicago Blackhawks, Anaheim Ducks and Toronto Maple Leafs. He was named an NHL All-Star in 2009 as a member of the Stars. In 2015, Robidas was nominated by the Toronto chapter of the PHWA as the Maple Leafs' nominee for the Bill Masterton Memorial Trophy as the player who best exemplifies the qualities of perseverance, sportsmanship, and dedication to hockey. 

In preparation for the 2017-2018 NHL season, the Toronto Maple Leafs will travel to the Gale Centre in Niagara Falls for training camp beginning Friday, September 15 to Sunday, September 17. The weekend will give fans the opportunity to Stand Witness to training camp activities including practices, scrimmages, a Toronto Maple Leafs Alumni game and various outdoor activations.