The Bruins' rookies took two of the three games played this weekend, with a 4-2 victory over Pittsburgh on Friday and 3-1 triumph over the Sabres on Saturday.

While the 2018 Prospects Challenge wrapped up on Monday, September 10, at the HarborCenter in Buffalo, the Boston Bruins rookies still have three weeks to prove themselves before the 2018-19 season begins.

Video: Jay Leach speaks at end of prospects challenge

"I'm really satisfied in the way that we skated and we competed," said Providence Bruins head coach Jay Leach. "…The big takeaway I hope for the guys in that room was the way the Boston Bruins want to play and the way that we compete and we prepare…Hopefully all of them will have a taste of what it means to be a Boston Bruin."

Eight different prospects scored goals at the challenge, with Karson Kuhlman being the lone player with two goals. The former University of Minnesota-Duluth forward's level of play since camp started has caused the Boston brass to take notice.

"The tenacity of Karson [Kuhlman] is probably what's going to stand out," said Boston Bruins General Manager Don Sweeney. "Manages the puck really well, goes to the hard areas of the ice, got rewarded the other night, can penalty kill, he'll forecheck, a responsible player. He's certainly a guy we've identified that might grow with us and carve out a niche."

The 22-year-old signed an entry-level contract with the Bruins this spring and appeared in two games with Providence at the end of last season.

Video: Bruins GM speaks to media

Ryan Donato scored a goal on Friday while playing right wing, a position he's been adjusting to as a former center. With the state of the current Bruins roster, the 22-year-old may need to become comfortable in that position to claim an available job.

"Big adjustment for him," said Sweeney, "But I think at times he handled it really well. He's got a great stick when he's forechecking, so he picks up a lot of pucks regardless. He has to get comfortable in the defensive zone. I think that's where the biggest adjustment will be for him in handling pucks in that area, and we're going to go to work with him."

Czech native Dan Vladar also stood out in net, with 38 saves en route to the Bruins rookies' victory over Buffalo on Saturday.

"I thought Danno [Dan Vladar] played really well the other night," said Sweeney. "He'll get one of the games coming up here in the exhibition with both [Jaroslav] Halak and [Tuukka] Rask traveling over to [China]. We'll see where that next progression is for him. He's healthy this year… He really needs to challenge and push Zane [McIntyre] for as many starts as he can possibly get in the American League and continue to make that next step."

There are no updates as to who is going to fill the third-line center position, but the three prospects in contention - Jack Studnicka, Jakob Forsbacka Karlsson and Trent Frederic - are all traveling to China with the team on Tuesday. This will allow Bruins head coach Bruce Cassidy to evaluate their play in person. Sweeney will remain stateside for the domestic preseason games to evaluate the players who remain.

"The players here should recognize they're being evaluated equally to the players going to China," said Sweeney. "That's just how the roster broke down, how we decided to do based on some injuries and situations. It's a real good opportunity for players to see minutes and situations they might not if the whole group was together… I told the young players here the opportunity is there if you're ready to take somebody's job, but that's a big step."