DERBY County captain Richard Keogh has suffered an injury while away on international duty with the Republic of Ireland.
Keogh left training early in Malahide on Thursday due to a hamstring problem.
The injury is likely to rule him out of Saturday's Euro 2016 qualifier against Gibraltar in Dublin.
And the central defender is also a doubt for Tuesday's clash with world champions Germany in Gelsenkirchen.
The Rams released a statement, which read: Derby County can confirm that Richard Keogh has suffered a minor hamstring strain whilst on international duty.
"The 28-year-old left training early in Malahide and had a scan immediately after sustaining the injury.
"With the scan only showing a minor strain to the defender's hamstring, Keogh will stay with the Republic of Ireland squad ahead of Saturday's Euro 2016 Qualifier against Gibraltar in Dublin."
