Rosén bid farewell after last season and four Swedish Championship gold medals with his Växjö.
But when his team had problems during this season, Rosén couldn't say no when sports manager Henrik Evertsson wondered if he couldn't make a comeback.
On Thursday, he stepped onto the ice in the home game against Frölunda to deafening applause. About the audience's reaction, he says to TV4 Play:
It's an emotional experience, a sign that it means a lot to many. It touches and is something I'm glad for.
Experienced Rosén admitted that his stomach was fluttering beforehand.
Yes, absolutely, there's definitely uncertainty about where you stand.
The clock hadn't even reached nine minutes when the point machine – 431 points (178 goals + 253 assists) in 597 matches – had set up Dylan McLaughlin for the lead goal.
Really cool, of course. I think I've gotten into it pretty well, he says after the first period.
The pass went via a Frölunda club and up in the air.
It's not a cannon assist, but sometimes they go forward and skillfully, thanks to Dylan, who also scored halfway on a tennis serve, says Rosén.
In the second period, Rosén recorded his second assist point, again to McLaughlin, for a 2–1 lead.
Erik Thorell and Tom Nilsson scored Frölunda's goals in a match that went to a penalty shootout. There, home team's Sebastian Strandberg decided the outcome.
Växjö advanced to ninth place, while Frölunda remains in third.