The Buffalo Sabres have signed forward Casey Mittelstadt to a three-year contract with an AAV of $2.5 million.
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- Ranked third among Sabres skaters in goals (10) and fourth in points (22) in 41 games played during the 2020-21 season.
- Recorded 30 points (11+19) in 34 games for the University of Minnesota and was named to the 2016-17 Big Ten All-Rookie Team after his only season of collegiate hockey.
- Captured bronze medals for Team USA at the 2016 IIHF U18 World Championship and at the 2018 IIHF World Junior Championship, where he led the tournament in points and was named tournament MVP.