Scotland boss Gordon Strachan has revealed that Russell Martin is an injury doubt for Sunday's 2016 European Championship qualifier against Germany.
The Norwich City defender did not train with the rest of his international teammates in Dortmund on Saturday due to a groin strain.
Strachan is expected to name his starting XI before Sunday morning's training session.
"Only a player could tell you how he is feeling," he is quoted as saying by Sky Sports News. "He felt a bit yesterday so we took him off training as a precaution and obviously we have been on the go since the morning."
Brighton & Hove Albion's Gordon Greer is in line to replace Martin if he fails to regain full fitness.
