Find out which Rugby Union stars were born each day here at RUCK.
DOB: 20/10/1984 (Age 31)
Current Club: Racing Metro
Previous clubs: Brive, Castres, Blue Bulls
Making his France debut against England in 2013, Claassen has since gone on to win six Test Caps for Les Bleus.
The South African-born flanker was able to make his debut after he qualified on residency grounds, having played for Brive between 2007 and 2012. He then joined Castres before signing with Racing Metro in 2014.
He also previously played Super Rugby for the Bulls earlier in his career.
Current Club: Saracens
Honours: England, England U20
Saracens hooker George has developed significantly over the last year, making his England bow against France in a World Cup warm-up following Saracens Premiership final success against Bath.
George was then included in England’s RWC squad at the expense of Dylan Hartley, who somewhat ironically was axed from the squad following a four-week ban for head butting George during Saracens’ Premiership semi-final victory on 23 May.
He would only appear in England’s final game against Uruguay.
DOB: 15/10/1949 (Age 66)
Current Club: Retired
Previous clubs: Preston Grasshoppers, Waterloo RFC, Harlequins, Leicester Tigers
Honours: England, British and Irish Lions
Rugby World Cup winner Greenwood was a vital part of the England team that hoisted the Webb Ellis Cup in 2003.
The centre was a hugely dangerous presence in any midfield, with an uncanny knack for crossing the whitewash as he scored 34 tries in 96 games for Harlequins and Leicester.
He also touched down an incredible 31 tries in 55 games for England.
DOB: 20/10/1979 (Age 36)
Current Club: Toulon
Previous clubs: Munster
Honours: Ireland A, Ireland, British and Irish Lions
Hard-working second-row O’Connell is a Munster, Ireland and British Lions legend after Captaining all three during a notably successful career.
He will now join French giants Toulon following the men in greens elimination from the Rugby World Cup.
In total, he made 108 Test caps for Ireland while making seven for the British Lions.