It’s a coin toss whether the NHL will open the 2012-13 season on time, but the Bruins on Monday opted not to leave their bench open to chance, signing coach Claude Julien to a long-term contract extension.

The club did not reveal terms of the deal, but Julien had one season remaining on his contract, and an extension in the three- to five-year range would be likely. Julien has coached five seasons on Causeway Street, won a Cup in 2011, and this will be his second extension since joining the club in June 2007.