| Youth career | |||
|---|---|---|---|
| 1993–1998 | Notts County | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 1998–1999 | Notts County | 0 | (0) |
| 1999–2005 | Arsenal | 12 | (3) |
| 2002 | → Watford (loan) | 9 | (2) |
| 2002–2003 | → Watford (loan) | 12 | (0) |
| 2003–2004 | → Leeds United (loan) | 36 | (2) |
| 2005 | → Birmingham City (loan) | 12 | (0) |
| 2005–2006 | Birmingham City | 38 | (2) |
| 2006–2009 | Liverpool | 55 | (3) |
| 2009 | → Portsmouth (loan) | 13 | (0) |
| 2009–2010 | Real Zaragoza | 25 | (0) |
| 2010 | → Stoke City (loan) | 13 | (0) |
| 2011–2014 | Stoke City | 52 | (4) |
| 2012–2013 | → Wolverhampton Wanderers (loan) | 15 | (0) |
| 2014 | Pune City | 7 | (0) |
| 2015 | Wigan Athletic | 13 | (3) |
| 2016 | Tampines Rovers | 21 | (5) |
| 2017 | Bury | 7 | (0) |
| 2017 | Billericay Town | 13 | (1) |
| Total | 353 | (25) | |
| International career | |||
| 2001–2004 | England U21 | 24 | (0) |
| *Club domestic league appearances and goals | |||