Gonzalez is hopeful of securing a European passport ahead of the start of next season, otherwise the Reds will face another anxious wait to see if the play-ers fulfils work permit criteria.
Benitez and his scouts have compiled an impressive video dossier highlighting Gonzalez's many excellent displays for Albacete and Real Sociedad.
"Mark was injured for a long time and needed to improve his fitness, but now he's back to the level he was when we decided to sign him," added Benitez.
Meanwhile, Daniel Agger is likely to miss this weekend's visit of Bolton with a shin problem.
Agger, who was today named Denmark's young player of the year, has been suffering with the complaint for several weeks.
Didi Hamann has recovered from a back problem which has sidelined him for the last fortnight and can return to the squad.
Rushden and Diamonds triallist Lee Tomlin, who featured in last night's 2-1 defeat for Liverpool reserves, is being assessed at Melwood as the Reds decide whether to make him the latest of their young English recruits.
HAVE your say on our Reds Messageboard - click 
RSS News Feed