Liverpool have completed the signing of striker Robbie Keane from Tottenham for a fee that could rise to
£20.3m.
Keane, 28, underwent a medical on Monday after agreeing personal terms on a four-year contract worth around £80,000 a week over the weekend.
And he could now debut in Wednesday's friendly against Villarreal.
Tottenham have also agreed to drop their official complaint to the Premier League after Liverpool apologised for their conduct in pursuing the Irishman.
Relations between the clubs became strained after Spurs chairman Daniel Levy accused the Reds of breaking Premier League rules in making their interest in Keane known despite being told by the Londoners he was not for sale.
However, a statement on the Spurs website read: "Liverpool FC have acknowledged that the way its website reported comments of its manager, which were widely covered by the media, was inappropriate.
"In light of that acknowledgement (they) have apologised and agreed to make a donation to our Club's main charity, the Tottenham Hotspur Foundation.
"Tottenham Hotspur has therefore agreed not to pursue its official complaint to the Premier League."
I don't regard it as a transfer deal - that is something which happens between two clubs when they both agree to trade - this is very much an enforced sale
Tottenham chairman Daniel Levy
Levy added, though: "I was incredibly disappointed when I first heard, not only that Liverpool had been working behind the scenes to bring Robbie to Anfield, but that Robbie himself wanted to go and submitted a transfer request to this effect.
"I have already made my opinion clear on the nature of this transaction.
"I don't regard it as a transfer deal - that is something which happens between two clubs when they both agree to trade - this is very much an enforced sale, for which we have agreed a sum of £19m as compensation plus a potential further £1.3m in additional compensation."
Liverpool will now become Keane's sixth club after spells at Wolves, Coventry, Inter Milan and Leeds, before his switch to Tottenham in 2002 for £7m.
The Irishman had become Benitez's number one summer target over recent weeks, with the need to replace Peter Crouch, who joined Portsmouth earlier this month, seemingly more important than pursuing the complicated and protracted move for Aston Villa's 27-year-old midfielder Gareth Barry.
With the prospect of Xabi Alonso now remaining at Anfield, Liverpool may now decline to respond to Villa manager Martin O'Neill's demand that they make their intentions regarding Barry clear.
Liverpool's response is that Villa have turned down four bids for Barry and the Merseysiders are not prepared to pay £18m for the England international.
Benitez will now be unwilling to allow full-back Steve Finnan, a possible makeweight in a deal for Barry, to leave the club.
That is because new signing Philipp Degen is expected to need surgery on a groin injury that will rule him out of the start of the season.
There is also the likelihood that Spain international Alvaro Arbeloa could return to his home country for £6m in the coming weeks, having expressed such a desire for personal reasons.
All such problems will be put aside by Benitez when he is able to unveil Keane - who married Irish model Claudine Palmer in June - as the new strike partner for Fernando Torres.
Torres cost Liverpool £20.2m when they bought him 12 months ago, and their current second biggest signing is Javier Mascherano, who cost £17m when the deal finally went through in February this year.
The arrival of Keane takes Liverpool's spending to about £32m since the end of last season. They have already drafted in Degen, fellow full-back Andrea Dossena, goalkeeper Diego Cavalieri and teenagers David Ngog and Emmanuel Mendy.
About £20m has been raised by selling Crouch, John Arne Riise, Scott Carson and Danny Guthrie.
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