The rumour in question is coming from Sportsnet's Nick Kypreos, who is suggesting that Joseph Woll may not be available for the Maple Leafs tonight.
Kypreos mentioned that he hopes that his source got the information from someone who was merely circulating rumours that were not based in truth.
Joseph Woll has been an absolute catalyst for the Maple Leafs, allowing just 2 goals over his last 2 starts, almost singlehandedly winning Games 5 and 6. If he does indeed miss Game 7, the Leafs are going to have to play that much better in front of Ilya Samsonov, who hasn't played nearly as well as Woll has in this series.
Elliotte Friedman has confirmed that all of Woll, Ilya Samsonov and Martin Jones came to TD Garden on the team's second bus, so it could be any one of the 3 netminders starting in Game 7, but Friedman did suggest Samsonov seems like the most likely starter tonight.