TORONTO—Toronto Maple Leafs captain John Tavares was discharged from the hospital Friday, one day after leaving the ice on a stretcher following a knee to his head. Coach Sheldon Keefe said after practice that Tavares had a concussion and will be out indefinitely. Tavares is under the supervision of team doctors. He said in a statement he is recovering at home and will be cheering for his team while looking forward to his return to the lineup. He was hurt during a 2–1 loss to the Montreal Canadians on Thursday night in a first-round playoff opener. Game 2 is Saturday in Toronto. The 30-year-old center crashed into Montreal’s Ben Chiarot 10:29 into the first period and was hit in the head by Corey Perry’s knee as he fell. Tavares gave a thumbs-up as he was wheeled off the ice. He was kept overnight at St. Michael’s Hospital, where he was …