Bachman injured his groin extending his left pad, reaching for the puck.
Bachman was making his third consecutive start since being called up Sunday on from the Oklahoma City Barons.
A free agent signing from the Dallas Stars this summer, Bachman replaced Devan Dubnyk on the Oilers roster. Dubnyk injured his ankle in practice last week.
Bachman was replaced by Jason LaBarbera, who allowed the final three goals.
Stay Connected
NHL.TV™
NHL GameCenter LIVE™ is now NHL.TV™.
Watch out-of-market games and replays with an all new redesigned media player, mobile and connected device apps.
Introducing the new official NHL App, available for iPhone, iPad and Android smartphones and tablets. A host of new features and improved functionality are available across all platforms, including a redesigned league-wide scoreboard, expanded news coverage, searchable video highlights, individual team experiences* and more. The new NHL App on your tablet also introduces new offerings such as 60fps video, Multitasking** and Picture-in-Picture.
*Available only for smartphones
** Available only for suported iPads