Mason was stuck behind Sergei Bobrovsky in Columbus and was 3-6-1 with a 2.95 goals-against average and a .899 save percentage. In 232 games over five seasons with the Blue Jackets, Mason has a record of 96-99-27 with a 2.90 GAA, .903 save percentage and 19 shutouts. He'll back up Ilya Bryzgalov in Philadelphia.
Leighton barely played for the Flyers after he helped lead them to the Stanley Cup finals in 2010. He appeared in one game for the Flyers this season and only 29 over the past three seasons, going 17-6-3. He allowed the winning goal in a Game 6 overtime loss to Chicago that gave the Blackhawks the Cup.
The Flyers also claimed center Adam Hall off waivers from Tampa Bay and recalled goalie Cal Heeter from their American Hockey League affiliate, the Adirondack Phantoms.