After playing in an exhibition game in Brno, Czech Republic, to commemorate the retirement of former NHL forward Martin Havlat on Wednesday, Jagr said, "There is a couple of [NHL] teams that showed interest, but nothing specific yet."
Jagr's options outside the NHL include playing in the KHL or with Kladno, the team he owns in the Czech Republic's second-tier professional league.
Barkov said he was a little bit surprised that an NHL team hadn't signed Jagr, but added, "I'm pretty sure he will sign somewhere."
Barkov said he last spoke with Jagr when he saw him in Florida after last season ended before going home to Finland for the summer. At that point, Barkov thought Jagr would return to the Panthers, who acquired him in a trade with the New Jersey Devils on Feb. 26, 2015.
Barkov admitted he was disappointed Jagr wasn't re-signed by the Panthers.
"I would be lying if I say no because he helped me so much and probably I would never be in the same situation without him," Barkov said. "When he came in, I took my game to another level and for sure everybody else on the team did too. He just helped so much everybody on the team and is one of the most important guys in my career."