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Madrid agreed to rent out their former youth team player Ruben to
The royal club included a clause in the rental agreement stating that Ruben will not be able to play against Madrid's "Real".
The 22-year-old center-back played two matches for "Real" last season, then was loaned out to a German club -. At the end of the season, Ruben suffered a shoulder injury and returned to Spain.
"Albacete", who finished 14th in the Spanish league ("La Liga") last season, hopes to break into the top 10 strongest teams in Spain this season.