Manchester United are waiting on news of defender Phil Jones after he suffered an apparent toe injury in a training-ground tackle with Chris Smalling while with the England squad.
The 25-year-old will miss the friendly against Germany on Wednesday and the World Cup Qualifier against Lithuania on Sunday as a result of the injury and was released back to United for treatment on the injury.
England also confirmed that there were no immediate plans to call up a replacement for Jones and manager Gareth Southgate would assess his defensive options with centre-back Gary Cahill suspended for the match against Lithuania at Wembley.
When asked about the severity of the injury, Southgate said: "Well, we don't know. We didn't feel it was an injury that we could treat and have him ready for the game tomorrow.
"So, we have to respectfully send him back to the club and we'll know more once he has had a scan or an X-ray.
"It was an innocuous tackle and he caught the bottom of somebody's foot, so it's a possible injury to his toe. As I say, we'll know more over the next 24 to 48 hours."
Raheem Sterling missed the session as he is on his own personal recovery plan following Manchester City's 1-1 draw with Liverpool on Sunday, however there were no concerns surrounding him.
Jamie Vardy trained with his team-mates after revealing he received death threats following Claudio Ranieri's sacking by Leicester last month. The threats followed reports he may have had a part to play in the Italian's exit, which Vardy firmly denies.
The returning Jermain Defoe, who has not played for England since 2013, and West Brom's Jake Livermore, looking for his first cap since 2012, also featured.
Southgate and his squad will fly out to Dortmund on Tuesday ahead of their clash against the reigning world champions at Signal Iduna Park.
England, who are yet to taste defeat under Southgate, are aiming to record successive wins over Germany for the first time since the 1930s having defeated Joachim Low's side 3-2 in a friendly last March.