McDonald, 27, scored 49 points (14 goals, 35 assists) in 68 AHL games last season with Wilkes-Barre/Scranton. The Wethersfield, Conn., native added 13 points (six goals, seven assists) in 12 Calder Cup Playoff games and also appeared in five National Hockey League games last season with the Pittsburgh Penguins.
A 6-foot-2, 190-pound forward, McDonald has appeared in 374 career AHL games with Wilkes-Barre, Oklahoma City and Springfied, recording 90 goals and 85 assists for 175 points. He won the Willie Marshall Award as the AHL’s leading goal-scorer in 2010-11 (42), and played in the AHL All-Star Classic in 2011 and 2012.
McDonald was originally a second-round pick (51st overall) by Edmonton in the 2003 NHL Draft.
DeFazio, 23, completed his first professional season last year with Wilkes-Barre/Scranton. The Etobicoke, Ont., native recorded 16 points (11 goals, five assists) and 104 penalty minutes in 66 regular-season games with Wilkes-Barre/Scranton, and also appeared in 12 Calder Cup Playoff games.
A 6-foot-1, 215-pound forward, DeFazio played four seasons at Clarkson University from 2007-11.