Keyser, whose impressive stint at Bruins rookie camp last fall earned him a contract less than a month later, arrived in Boston prior to Game 2 with Toronto and has joined the team towards the end of each practice for some brief on-ice work.
"It's been unbelievable, getting the chance to just travel with the team and experience what it is to sort of be in the NHL, to see what these guys go through every day," said Keyser, who went undrafted. "They're all such professionals and you see why they have so much success at this level and why this team has done so well this year.
"Just getting adjusted to the speed and the shots has been really fun for me…everyone here has been super nice and welcoming, so it's made the transition pretty easy."
The 6-foot-2, 182-pound native of Coral Springs, Fla., has played in the OHL for the last three seasons, one with the Flint Firebirds and the last two with the Generals, for whom he posted a 28-13-0 record and .904 save percentage this season. When Oshawa - the former junior team of Bobby Orr - fell to Niagara in the first round of the OHL Playoffs, Keyser and teammate Jack Studnicka - a fellow Bruins prospect - headed to Providence for their first experiences at the professional level.
"It's been pretty chaotic, honestly," said Keyser, who is not eligible for the AHL next season because of his age. "Our season finished with Oshawa a little bit earlier than we were hoping for. But it opened up an opportunity to experience something somewhere else. I went home for a day and packed all my stuff, pretty much did all my laundry again and off to Providence I was with Jack Studnicka."
Keyser's time in Providence - which did not include any game action - was short as he was quickly summoned up I-95 to Boston, where he has had the chance to pick the brains of Bruins netminders Tuukka Rask and Anton Khudobin.
"Tuukka's obviously been one of the best goalies in the NHL throughout his entire career," said Keyser. "And just getting the experience to see how they prep. Both him and Doby have been extremely nice to me and welcoming, just talking to me and asking me questions, too, about goaltending. I've been talking to them in different situations, just picking their brains has been an experience that I'm very thankful for."
The 31-year-old Rask, now in his 11th season, has been happy to provide some insight into life as an NHLer
"I'm sure it's pretty cool…if I was 19 and had that opportunity, I'm sure I would have enjoyed it," said Rask.