Tight-heap prop Craig Mitchell has given Wales a pre-Six Nations boost by returning from the bench as Exeter lost to Northampton. on Saturday.
Mitchell sustained a ruptured bicep in September against London Welsh.
In the meantime fellow Wales tight-head Adam Jones has suffered and recovered from a knee injury.
Jones' fellow Osprey Aaron Jarvis deputised in November, but is out for the season following a knee injury against New Zealand in November.
Versatile Scarlet Rhodri Jones has also recently returned following a shoulder injury.
In the absences of Jones, Mitchell and Jarvis, Cardiff Blue Scott Andrews earned plaudits for his performance against Australia in the last of Wales' four autumn defeats on 1 December, 2012.
In December Mitchell looked forward to his return by saying: "What Wales have achieved in the past year is massive and I want to be a part of it.
"The only way to do it is to be playing well for Exeter."
Mitchell, who has 11 Wales caps, has had an injury-interrupted two years after he dislocated his shoulder in his country's 19-13 Six Nations win over Ireland in March 2011, forcing him out of the rest of that season.
He then had surgery on a torn shoulder earlier this year before suffering a bicep injury early in this campaign.