At the time, it was a risky move by the New York Islanders to acquire recent unrestricted free agent Robin Lehner on a single year $1.5 million deal. Lehner became a UFA after the Buffalo Sabres opted to not tender him a qualifying offer.
With a 3.01GAA and a 0.908SV% during the 2017-18 season, it seemed that Buffalo was trying to get rid of a bad goalie, and the Islanders were inexplicably ready to sign a bad goalie.
Later last summer, Robin Lehner spoke to the Athletic (subscription required) about his mental demons.