Liverpool have suffered a major injury blow with Jeremie Frimpong forced off in the first half at Frankfurt.
The Dutchman, who signed from Bayer Leverkusen in the summer, went down holding his hamstring early on in the Champions League clash in Germany.
He ultimately couldn't continue, and was replaced by Conor Bradley after just 19 minutes.
The knock will come as a major setback for Frimpong, who has been blighted by injuries since moving to Merseyside.
On his league debut for the club against Bournemouth back in August, the 24-year-old suffered an injury which kept him out until mid-September.