Four-time Beijing Olympics biathlon champion Johannes Thingnes Bö is ending his biathlon season prematurely and won’t compete at the final three World Cup stops. Bö, 28, said in a statement issued by the Norwegian federation on Monday that the past year was “physically and mentally very challenging regarding the coronavirus measures and the preparations for the Olympic Games. “There was no room for a longer break since the last Games in 2018, so I will now take time off to be prepared at my best and highly motivated for the next four years until the 2026 Olympics,” he said. Bö will miss the fi…