Ashley Cole and Andre Schurrle trained with Chelsea in Surrey on Monday prior to the squad's departure for Tuesday's Champions League match at Schalke.
Left-back Cole (ribs) and forward Schurrle (leg) missed Saturday's 4-1 defeat of Cardiff at Stamford Bridge, but the Blues confirmed on their official website that the pair trained at Cobham on Monday morning.
Both could come into contention for the Champions League Group E contest at the Veltins Arena in Gelsenkirchen in Chelsea's first match in Germany since lifting the 2012 European Cup.
Chelsea were to travel to Dusseldorf on the eve of the match, with Jose Mourinho scheduled to address the media.
The Portuguese was sent to the stands during the defeat of Cardiff.