Former Hearts midfielder Andrew Driver has signed for Aberdeen until the end of the season.
The 27-year-old had been without a club since leaving Houston Dynamo last November.
"I'm delighted to get Andy on board," manager Derek McInnes told the club's official website.
"Hopefully he will make the most of this opportunity we've given him. During his time with us, I believe there has been enough to suggest that he can be a good addition to our squad."
Driver previously played for Scotland Under-16s and England Under-21s. He pledged his allegiance to the Scotland national team, but has yet to play for the senior squad.