The Argentinian international played under Benitez whilst they were at Valencia and Benitez is keen to bring him to Liverpool but will have to bid as much as £8 million.
The 28-year old has been linked with a move to the Premier League before when Liverpool were said to of made a £10 million bid for him before his move to Zaragoza.
Aimar has 47 caps for Argentina and in my view would be a quality signing. I personally feel Reds fans will want Benitez to spend his money on securing the signature of Javier Mascherano but you never know this transfer could happen in the summer.