Benitez: Riera poised to leave Liverpool
"We are working with different clubs trying to find a solution at the moment and we will see what happens," Benitez told the club's website.
"I said we will deal with this internally. We will try to do some business if we can."
The Spanish midfielder joined Liverpool from Espanyol in September 2008 but after making a promising start at the Anfield club he has since faded into the first team fringes.
Last week the 27-year-old complained of being ignored by Benitez and he has since been linked with a move to Russia.