He won the 1999 Hart Trophy as NHL MVP, the Art Ross Trophy as scoring champion five times (1995, 1998-2001), and the Bill Masterton Memorial Trophy for perseverance and dedication to hockey in 2016.
He scored more than 20 goals in an NHL season 19 times, including each of his first 17 seasons, and scored at least 30 goals 15 times, at least 40 goals six times, and at least 50 goals three times, including an NHL career-high 62 in 1995-96.
"He's a legend in the game and a guy I looked up to my whole life," Flames center Sean Monahan said. "Still do. Having him here and getting to know him and learn from him was pretty special."
Jagr had five 100-point seasons, most recently in 2005-06 with 123 points (54 goals, 69 assists) in 82 games with the New York Rangers. His high was 149 points (62 goals, 87 assists) with the Penguins in 1995-96.
Jagr was selected to the NHL All-Star Game 10 times and voted an NHL First Team All-Star seven times.
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"He's had a great career, but still you could see he still has the desire to play and he's going to continue to play," Flames captain Mark Giordano said. "It's tough when things don't work out as planned. I think there are a lot of different factors, and the bottom line is he's a great guy. He just couldn't get around a few nagging things that were bothering him. I'm sure he'll go back, play and come back stronger."
Jagr played for the Penguins, Washington Capitals, Rangers, Philadelphia Flyers, Dallas Stars, Boston Bruins, New Jersey Devils, Panthers and Flames.
He played for Omsk in the Kontinental Hockey League from 2008-11. He played for his native Czech Republic at the Olympics five times, winning the gold medal in 1998 Nagano and a bronze medal in 2006 Torino. Jagr is a member of the Triple Gold Club, adding the gold medal at the 2005 IIHF World Championship to his Olympic gold and Stanley Cup championship.