Senators general manager Pierre Dorion said Hammond is expected to be out at least another week with a groin injury. Anderson, who could leave the Senators at any time to attend to his wife's situation, was backed up by two inexperienced goaltenders, 22-year-old Chris Driedger and 24-year-old Matt O'Connor.
"Craig's situation is very fluid at the moment," Dorion said. "We don't [know] when the possibility [is] of him leaving. Why Mike Condon? Because we are getting someone who we know has NHL experience, that had a very good season last year. We saw him quite a few times. We think he is a very good NHL goalie and he's going to help us win.
"We can't afford to not field the best team we feel we can field to give us a chance to win. With someone that's played as much as Mike over the last year, we just felt it was a really good fit for us."
Condon made his NHL debut on Oct. 11, 2015 for the Montreal Canadiens against the Senators in Ottawa's home opener, a 3-1 win by the Canadiens. With goaltender Carey Price injured, Condon started 51 games for the Canadiens last season and was 21-25-6 with a 2.71 goals-against average and a .903 save percentage.
Condon was undrafted and signed with the Canadiens in 2013 after completing his college eligibility at Princeton.
The Penguins, faced with an injury to goaltender Matt Murray, claimed Condon off waivers from the Canadiens on Oct. 11. Condon appeared in one game for the Penguins, relieving Marc-Andre Fleury and stopping all seven shots he faced in the third period of a 5-1 loss at the Nashville Predators on Oct. 22.
Murray has recovered from his broken hand.
Dorion said Condon was travelling from California, where the Penguins were to play the Anaheim Ducks on Wednesday, and is expected to join the Senators on Thursday, when they host the Vancouver Canucks
O'Connor was returned to Binghamton of the American Hockey League to make room for Condon on the roster.
