Seth Jones impressed his Florida Panthers teammates in his debut Monday night, but it’s anyone’s guess when Matthew Tkachuk will be sharing the ice with his newest teammate.

The Florida Panthers added defense to bolster their repeat of a Stanley Cup win. Now the question with Matthew Tkachuk put on injured reserve is whether they have another move coming.

The defending Stanley Cup champion Panthers confirmed Monday, a few hours before Jones’ debut with the team, that Tkachuk is on long-term injured reserve with a lower-body injury. That means Tkachuk won’t be back for a few weeks — and possibly not until the postseason.