"It was tough because I knew I still had a lot in my tank," Hossa said Thursday. "I felt like I still got two or three years in me, I could easily play at my level. But I said, I cannot work this way because in the future, it can stop me in different ways. So that was a tough decision, but I think it was the right decision."
Hossa will be in the stands to watch his former team, the Chicago Blackhawks, open the season against the Philadelphia Flyers in the 2019 NHL Global Series at O2 Arena on Friday (2 p.m. ET; NHLN, SN360, NBCSP, NBCSCH, NHL.TV).
RELATED: [NHL Global Series coverage]
Hossa, who was part of three Stanley Cup championship teams in Chicago (2010, 2013, 2015), spent Thursday visiting with some of his old teammates.
"I was looking forward to meeting the guys in Prague, so the day finally came to see people in the organization we had so much success with," the 40-year old said. "I maybe know five or six guys from the locker room. But the trainers, the front office, it's all the same, pretty much. It's nice to be around this, and nice to be back."
Center Jonathan Toews, forwards Patrick Kane and Andrew Shaw, defensemen Duncan Keith and Brent Seabrook and goaltender Corey Crawford are the remaining Blackhawks who played with Hossa, who was with Chicago from 2009-17. Hossa said he's hoping to have lunch or dinner with some of them.