Wolff, 25, has appeared in 56 games for the Providence Bruins from 2020-22, recording 10 assists and a plus-7 rating. The 6-foot-5, 220-pound defenseman played four seasons at the University of Minnesota-Duluth (2016-2020), where he won back-to-back National Championships in 2018 and 2019. The Eagan, Minnesota native served as the Bulldog's captain for his senior season in 2020. Over 156 games at Minnesota-Duluth, Wolff tallied 14 goals and 39 assists for 53 points and a plus-59 rating.
Wolff was signed by Boston as a free agent on March 18, 2020.
Keyser, 23, has appeared in 44 games for the Providence Bruins from 2019-22, posting a 15-19-15 record with a 2.79 goals against average, a .906 save percentage and one shutout. The 6-foot-2, 185-pound goaltender has appeared in 24 games in the ECHL for the Atlanta Gladiators, Jacksonville Icemen and Maine Mariners, posting a 9-11-2 record with a 2.64 goals against average and a .910 save percentage.
The Coral Springs, Florida native was signed by Boston as a free agent on October 3, 2017.
