Undersized but tenacious winger with good vision and puck handling ability. Potential middle six offensive threat, but must add more quickness to his game as he matures.
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December 2020 – Detroit’s second round pick from 2019 was initially named to USA’s preliminary roster for the 2021 World Juniors but eventually needed to be replaced due to COVID protocols. Boston University has yet to begin play this season but Mastrosimone will look to build off a solid freshman campaign when they get their season underway. Nick Richard
October 2020 – Mastrosimone had a solid freshman season for Boston University, tallying seven goals and 10 assists through 34 games. Although he is undersized, Mastrosimone plays a tenacious game and is elusive with the puck on his stick. He has above average vision and passing ability but he is not exceptionally quick for a smaller player. He has the potential to be an offensive threat at the NHL level if he can improve his skating as he continues his development in the NCAA. Nick Richard
December 2019 – Selected in the second round of the 2019 draft, Mastrosimone is a small but skilled stickhandling sniper with an attitude. Known for his creativity and hands, Mastrosimone has a high-octane motor and enjoys playing a physical and competitive game. He can make plays or use his hard shot from anywhere. As one of the top wingers in the USHL in his draft year, Mastrosimone scored