The Buffalo Sabres have signed forward John Hayden to a one-year contract worth $750,000.
- Has compiled 31 points (13+18) in 185 career NHL games for the Chicago Blackhawks, New Jersey Devils and Arizona Coyotes.
- Tallied career highs in goals (4), assists (9) and points (13) in 47 games for the Blackhawks in 2017-18.
- Won a silver medal with Team USA at the 2013 IIHF U18 World Championship and later represented the United States at the 2015 IIHF World Junior Championship.
- Played four seasons for Yale University (ECAC) and led the Bulldogs with 21 goals in 33 games as a senior in 2016-17.