Just a couple of more days until the Bruins and Penguins rookies face off in the Prospects Challenge in Buffalo, and it feels like we are entering uncharted waters.

I honestly can’t recall another year where there was this much anticipation and excitement over a crop of Bruins prospects.

On Friday, we’ll begin to learn more about the kids and start to find out who is a prospect and who is a suspect, who will be able to contribute at the NHL level and who can’t, now and down the road.

A handful of players suiting up in Buffalo – let’s start with Charlie McAvoy and Anders Bjork –  likely will be in Boston’s lineup against Nashville on opening night a month from now. If everything goes as hoped, they will step right in and contribute.

Most of the the young guys, to state the obvious, will spend the year in Providence.

If they don’t make the big club out of camp – and I’m not ruling anyone out at this point — will second-year pros such as Jake DeBrusk, Danton Heinen, Sean Kuraly, Rob O’Gara and Matt Grzelcyk continue to make progress?

How will the likes of McAvoy, Bjork, Jesse Gabrielle, Zach Senyshyn, Jacob Forsbacka Karlsson, Jakub Zboril and Jeremy Lauzon fare in their first full season of pro hockey?

A few more questions to ponder before the puck drops:

Can McAvoy pick up where he left off in the postseason?

I don’t see why not. I believe he will be in the discussion for the Calder Trophy by season’s end.

Is Bjork ready for full-time NHL duty? 

I like his chances, but you never know. The Boston lineup needs the speed and skill that he showed off at development camp in July.

Darkhorse candidate to impress in Buffalo: Ryan Fitzgerald gets my vote. The Boston College alumnus played well in Providence at the end of last season. It says here that he’ll keep that up.

What will the first power-play unit be on Friday?

I’m going with McAvoy and Grzelcyk up top, JFK as the bumper, Bjork on right wing and Heinen on the left.

How does Boston’s young talent stack up?

This weekend will provide a good measuring stick as to how good Boston’s young players are. Prospects like Nico Hischier and Will Butcher of the Devils, Alex Nylander of the Sabres and Daniel Sprong of the Penguins should be there. It will be interesting to see how Boston’s guys look in comparison.

When will David Pastrnak’s contract be straightened out?

Okay, this one doesn’t have anything to do with what happens at the Prospects Challenge. Still, it’s a question that is on everyone’s mind these days. Simply put, Pastrnak has to be signed and ready to go on opening night. The success or failure of the Bruins season might depend on it.

Catching up as the clock runs out on August:

— Former Providence College captain Tim Schaller was a nice feel-good story for the Bruins in 2016-17.

After spending the better part of three seasons  shuffling between Rochester and Buffalo, the New Hampshire native was in the NHL with Boston from the start of the regular season all the way through to the final game of the playoffs.

He was one of the last cuts in training camp and cleared waivers, but spent only a day in Providence before being recalled just before the season opener when Patrice Bergeron went down with an injury.

The hard-working Schaller went on to carve out a bottom-six niche for himself and earned a one-year, one-way, $775,000 contract for 2017-18. It’s the first one-way deal of his career.

Generous with his time, the 26-year-old was back on the ice at Schneider Arena last week working with youngsters from the Junior Friars as part of Toby O’Brien’s Ocean State Hockey.

One full season does not an established NHL player make, and with training camp set to open on Sept. 14, Schaller knows he’s in no position to take anything for granted.

“I’m kind of glad I don’t feel established. It’s one of those things – it makes me work that much harder every day to be established. I don’t think I’m there yet, which is a good mindset to have. It makes me push that much harder every day,’’ he said.

There  will be competition in camp for roster slots from young players up from Providence. Schaller knows what he has to do.

“My mentality needs to be that everyone starts with a clean slate. I need to go in there and be better than the guys I’m fighting with for a spot,’’ he said.

“Hopefully I can stick all year again this year – without the 24-hour send-down.’’

— Dave Creighton enjoyed a long and productive playing career, starting with the Boston Bruins in 1948-49 and ending with the Providence Reds in 1968-69.

Creighton, whose son Adam is a scout for the Boston Bruins, passed away at age 87 on Aug. 18.

I called my friend Buster Clegg, president of the R.I. Reds Heritage Society, to get some perspective on Creighton’s time in Providence.

Clegg, who was assistant general manager in the mid- to late ‘60s, recalled the day in November 1965 when GM Fernie Flaman traded Ed McQueen to the Baltimore Clippers, run by longtime Reds player, coach and executive Terry Reardon, in exchange for Creighton.

McQueen, a steady player and a fan favorite, was on the verge of tears, Clegg said.

After finishing out the 1965-66 season as a player only, Creighton took over as player/coach /GM for the next two seasons, then was a coach/GM only in 1969-70.

The Reds, without an NHL affiliate, had a terrible team when Creighton arrived.  The low point was ’66-67 when they went 13-46-13.

“We had a miserable team. Absolutely bad. We couldn’t win on the road,’’ said Clegg.

He wasn’t exaggerating.

The Reds set an AHL record that probably will never be broken by going winless in all 36 of their road games in ’66-67. The road winless streak stretched into ‘67-68 and reached a record 64 games – 0-57-7.

It finally ended on Dec. 30, 1967 in Hershey.

“Dave said to me the afternoon of the game, ‘What do you think if we started (backup goalie) Ross Brooks, give Marcel (Paille) a night off?’’’ said Clegg.

“I said, ‘That couldn’t hurt with a record like we have.’  Brooksie came through. Jimmy Mikol came through,’’ in a Reds win, Clegg said.

“ That changed the complexion of the team and their attitude toward winning on the road.’’

Creighton presided over a Reds revival that season, going from 13 wins to 30.

The Reds needed a win at home on the last night of the season to get into the playoffs.

“It gives me goose bumps to think about it. We played Terry (Reardon and the Clippers) and we beat them. We had over 6,000 people, I believe, in the building. They were all over the place,’’ said Clegg.

Creighton had a season for the ages, centering a line with Eddie Kachur (47 goals) and Brian Perry (31 goals). The player/coach put up 22-53-75 in 72 games.

He won the Les Cunningham Award as AHL MVP even though he wasn’t a first-team all-star and finished tied for 10^th in points.

In the playoffs, Providence lost its first game against Springfield. “In the second game, Dave was outstanding, the best player on the ice,’’ said Clegg.

The Reds went on to win the next three games and take the best-of-five series before losing to Quebec in the second round.

“Dave was a prince to work with, absolutely.  He was a quiet leader. His strength was leadership by example,’’ said Clegg. “The players knew he was busting his backside out there to make something out of nothing.’’

The Neponset Valley River Rats jamboree is all grown up. Not that long ago it was just a handful of teams of varying skill levels playing at Foxboro. Now it is much more than that. Some of the top teams in the Northeast are invited, it is played in the Big House in Marlboro and it is a fitting kickoff to the U15, U16 and U18 season.

While spending some quality time there on Monday, I chatted up some NHL guys and came away with five prep kids who will be getting looks from the scouts this fall and winter. These aren’t the only five, of course. Other players will emerge as the season goes on, but we’ll start with these guys.

D Peter Diliberatore, U-18 Yale and Salisbury. He is a Quinnipiac commit.

D Jordan Harris, KUA, a Northeastern commit.

D Mike Kesselring, New Hampton and NH Avalanche, a Merrimack commit.

F Aidan McDonough, Thayer and Cape Cod Whalers, a Northeastern commit.

F Jay O’Brien, Thayer and Cape Cod Whalers, a Providence College commit.

The River Rats jamboree starts tomorrow morning. It’s the unofficial start of the 17-18 season, at least for U15, U16 and U18 teams. There’s a pretty good chance that I’ll have a thought or two by later in the day.