The Vancouver Canucks placed goalie Thatcher Demko on injured reserve on Sunday due to a lower-body injury. He is listed as week-to-week and will miss at least four more games.Demko has played 17 games this season, with a 6-6-3 record, one shutout, a 2.87 goals-against average and a .891 save percentage. In his absence, Arturs Silovs served as the backup to Kevin Lankinen in Vancouver's 3-1 loss to Vegas on Saturday.B/R Open Ice shared the news on X, writing,"The Canucks have placed Thatcher Demko on IR."Soon, fans reacted to Demko's injury news. Some were frustrated, while others were surprised."Just retire bro 🙏," one fan wrote."He done ? Why sign Lankinen otherwise," another fan said."Demko is a hard guy to figure out. It almost feels like he's been playing mind games with management & fans, with all his bumps and bruises. Maybe forcing himself to get traded. Or maybe he's just truly injury prone and his career is shortening by the day," a fan said.Here are some more reactions from fans:"Pretty sure Allvin and co. are gonna be looking to move him away this offseason. Sad, but injuries have derailed a Vezina calibre goalie😭," a fan responded."Hate to say but he’s turning into Ben Bishop. One of the best goalies in the league but just can’t stay healthy," another fan said."Time to pull a Vegas. Bring him back in the playoffs and use the money to bring in more scoring!" a fan shared.Demko's injury is a setback for the Canucks. They will need to rely on Lankinen and Silovs until he returns.Vancouver Canucks lost to Golden Knights on SaturdayThe Vancouver Canucks lost 3-1 to the Vegas Golden Knights on Saturday at T-Mobile Arena. Canucks coach Rick Tocchet was frustrated with his team's errors in crucial moments."Somebody would have a puck, and we'd ice a puck like we weren't skiing with it," Tocchet said. "I don't know if we're nervous or nobody was supporting the puck... (that) was frustrating. ... I don't know if it's the two weeks off or the rust."Jake DeBrusk tapped in a pass from Kiefer Sherwood to give Vancouver Canucks a 1-0 lead at 6:22 of the second period. Vegas tied the game 1-1 at 11:02 when Ivan Barbashev scored on a rebound after Victor Olofsson's tip-in attempt.Brandon Saad put Vegas ahead 2-1 just 18 seconds into the third period. Tomas Hertl scored an empty-net goal at 19:29 to secure the win. Kevin Lankinen made 32 saves for Canucks.