Borgen, 22, played in four NHL games with Buffalo at the end of the 2018-19 campaign, averaging 16:33 of ice time and three hits per game. He dressed in two preseason games this fall, where he registered one shot on goal, three hits, and five blocked shots.
Rochester has a preseason game today against the Toronto Marlies in Newmarket, Ontario at 4 p.m. Yesterday, the team assigned 10 players to the Cincinnati Cyclones of the ECHL as they prepare for their season opener on Friday against Syracuse at Blue Cross Arena.
The Sabres, meanwhile, now have 33 players on their roster (18 forwards, 12 defensemen, 3 goaltenders). They must get down to a roster of 23 healthy players before the season begins. Currently, defensemen Brandon Montour, Jake McCabe, Zach Bogosian, Lawrence Pilut and Matt Hunwick are dealing with injuries. Goaltender Ukko-Pekka Luukkonen is recovering from offseason hip surgery and did not participate in training camp.
Buffalo's first game of the season is scheduled for Thursday at Pittsburgh.