Leighton has appeared in only one game this season, giving up five goals on 26 shots in a loss to Tampa Bay.
Boucher is in his third stint with the Flyers, having led the team to the 2000 Eastern Conference Finals as a rookie and shared goaltending duties with Leighton on their run to the 2010 Stanley Cup Final.
Just the feel for the direction they were headed and what they're trying to do, it just felt that this is a really good thing for this organization. They've got the pieces. We can put something together and go on a run or two and be together for a while, and I'm really excited about that opportunity. The team we have here has an opportunity to win, and that's the most attractive thing.
— Washington defenseman Matt Niskanen on why he decided to sign with the Capitals