Leeds have signed Finland midfielder Mika Vayrynen on a 12-month deal, with the option for a second year.
The 29-year-old left Dutch side Heerenveen in the summer.
United boss Simon Grayson told the club website: "There were good offers from clubs on the continent but he's turned them down because of his ambition to play for us.
"He has won over 50 caps and has a fantastic pedigree. He can play as an attacking or holding midfielder."
Vayrynen looked set to join Derby in 2007 when they had a bid accepted by PSV Eindhoven but an injury scuppered that deal.
He is the second Finland international to join United in less than a week, following the recruitment of striker Mikael Forssell.