Blackburn Rovers have completed the signing of Barry Ferguson from Rangers for £7.5m.
Ferguson has completed his move to Ewood Park
The Scottish international signed a four-year deal at the Ewood Park club on Friday.
Rovers boss Graeme Souness tipped the 25-year-old to be an instant success in the Premiership.
He told the club's official website: "He is 25, has been captain of Rangers and an international for a number of years, and I see him being an outstanding player for this club.
"I think the next five, six or seven years with Barry Ferguson in the Premier League, he will be regarded as one of the best central midfield players around.
"But he will come here with a lot to prove. There's a feeling in England that the Scottish league is not that
competitive. But I can tell you that, after being there and playing for Glasgow Rangers, they never have an easy game of football."
Earlier Rovers chief executive John Williams announced the deal had been brokered with Rangers.
He told BBC Radio Lancashire: "We hope to discuss personal terms with Barry Ferguson later today.
"At this stage, the agreement is only a verbal one with the club, but that's only because representatives from Rangers have been in Monaco for the Champions League draw."
Blackburn are believed to be paying £6.5m to the Scottish champions immediately, and £1m in instalments.
Rangers chairman John McClelland told BBC Scotland on Thursday that Rovers' third bid for Ferguson had been rejected.
Everton had also been in the running to sign the Scotland midfielder, with David Moyes seeing a bid of £6m bid turned down.
Moyes was in Denmark on Wednesday to see the 2-1 victory over Copenhagen, which put Rangers through to the Champions League group stages.
Rangers manager Alex McLeish met Ibrox directors on Thursday to urge them to keep Ferguson.
McLeish hoped the honour of captaining his side in the Champions League for the first time would force a change of heart from the lifelong Rangers fan, who has made clear his desire to leave for the English Premiership having spent his whole career in Scotland.