Lallana has signed a long term contract at Anfield after passing a medical and agreeing terms over the weekend.
Lallana has been with Southampton since he was 12-years-old
And the 26-year-old follows the same pathway as England squad mate Rickie Lambert, who also left St. Mary’s for the Merseyside club earlier this summer whilst defender Luke Shaw completed a big-money move to Manchester United just last week.
"I'm so excited for the next chapter of my career, coming to a special club like Liverpool. I'm quite humbled and I just can't wait to get started," Lallana told LiverpoolFC.com
"Hopefully I can settle in quickly, and I will give it my best throughout the whole time I'm here. I hope I can add something to the team and hopefully we can win trophies while I'm here, because that's why I'm here - for success."
St. Alban’s-born Lallana has spent the last 14 years of his career with Southampton, having arrived at the club as a teenager from AFC Bournemouth.
He has since made over 250 appearances for the Saints in three different divisions and has captained them in the Premier League for the previous two campaigns.
Lallana’s international career has seen him capped by the Three Lions at U18, U19 and Under-21 level before he made his senior debut last season in the game against Chile at Wembley in November.
His arrival at Anfield comes less than a week after England’s final game in the World Cup against Costa Rica last Tuesday, when he played just over an hour of the game.
