There, he had the opportunity to skate with his father's students, including future National Hockey League (NHL) player Mike Reilly.

[5] Brink joined the Sioux City Musketeers of the United States Hockey League (USHL) during the 2017–18 season, recording four points in 13 games.

[14] Brink missed time at the end of the season with two separate injuries: a strained medial collateral ligament and a cut on his ankle from a skate blade.

[15] With his freshman season unexpectedly interrupted by the impact of the COVID-19 pandemic on ice hockey and other athletics, Brink spent the 2020 offseason practicing his skating at a local rink.

[17] When he did play, he struggled to score, recording only two goals and 11 points on a Pioneers team that failed to qualify for the 2021 NCAA Division I men's ice hockey tournament.

[20] By January 13, Brink had set career highs with 19 assists and 26 points, and he was nominated for the Hobey Baker Award as the top men's college ice hockey player of the year.

[35] Coach Ian Laperrière praised Brink's "hockey IQ and the skills that he's got", which allowed him to navigate his subdued physical capabilities.

[42] After putting up 11 goals and 23 points in 57 games for the Flyers, Brink was sent to Lehigh again on April 17, this time to push the Phantoms towards the 2024 Calder Cup playoffs.

[43] He scored in the Phantoms' regular-season finale, a 3–0 victory over the Bridgeport Islanders to clinch a playoff position,[44] and added four assists in six postseason games.

[46] Building on his previous season, Brink told reporters that he wanted to increase his confidence and consistency as a two-way player the coming year.

[47] Brink made his international debut with the USA Hockey National Team Development Program at the 2018 World Junior A Challenge.

[55] There, he recorded two goals and six points in seven games, earning a gold medal for Team USA alongside fellow Flyers prospect Cam York.