Derby have completed the signing of Werder Bremen's Marco Reich and Jamie Vincent from Portsmouth.
Reich impressed on a trial at Pride Park
The 28-year-old Vincent had been on loan at Walsall, where he has started for them 12 times this season after failing to be selected at Pompey.
And Reich was snapped up by Rams boss George Burley after shining on trial at Pride Park.
"Marco has impressed us in training and I think he will be a great acquisition for the club," said Burley.
The 26-year-old midfielder has been at Werder Bremen for two seasons.
Both he and Vincent are expected to make their club debuts against Gillingham on Saturday.