Real Zaragoza have signed versatile Czech midfielder Jiri Jarosik, the struggling La Liga side said on their website (www.realzaragoza.com).
The 32-year-old former Chelsea and Celtic player has spent the last two years with Russia's Krylya Sovetov Samara.
Zaragoza, who are second bottom in La Liga, have already strengthened their squad with midfielder Eliseu and striker Humberto Souza in the January transfer window.
