Ersson stopped 29 of 33 shots in Tuesday's 4-3 overtime loss to the Oilers.
Ersson was trying to nurse a 3-2 lead to the finish line, but Evan Bouchard scored to tie the game with 3:42 left in the third. In overtime, Leon Draisaitl buried a rebound from a Connor McDavid shot to complete the Flyers' collapse. Ersson has allowed six goals on 59 shots over his first two starts, going 1-0-1. The 24-year-old netminder appears to be the preferred option over Ivan Fedotov. The Flyers end their season-opening road trip in Seattle on Thursday.