Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 04/2009 - 10/2009 |  | Asante Kotoko |  Ghana | Defence | |
| 01/2008 - 06/2008 |  | AFC Ajax |  Netherlands | Defence | 6 |
| 07/2007 - 01/2008 |  | AS Roma |  Italy | Defence | 31 |
| 09/2006 - 06/2007 |  | AS Livorno | Italy | Defence | 14 |
| 07/2005 - 08/2006 | | AS Roma | Italy | Defence | 4 |
| 01/2005 - 06/2005 |  | Bayern München II |  Germany | Defence | |
| 07/1997 - 06/2005 |  | Bayern Munich | Germany | Defence | 4 |
| 07/1996 - 06/1997 | | Bayern Munich | Germany | Defence | 15 |
| 11/1995 - 06/1996 |  | 1. FC Nuremberg | Germany | Defence | |
| 10/1994 - 10/1995 | | Bayern Munich | Germany | Defence | |
| 07/1994 - 10/1995 | | Bayern München II | Germany | Defence | |
| 07/1993 - 06/1995 |  | AS Roma U19 | Italy | Defence | |
| 07/1991 - 06/1993 |  | Torino FC U17 | Italy | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Intercontinental Cup | 1 | 1 | - | - | 120 | 1 | - | - | 1 | - | - | » All matches |
 | Champions League | 72 | 68 | 4 | 4 | 6.130 | 1 | - | 1 | 8 | - | 1 | » All matches |
| Champions League Qual. | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Europa League | 16 | 16 | - | - | 1.440 | 1 | - | - | 2 | - | - | » All matches |
| Bundesliga | 175 | 160 | 15 | 14 | 14.043 | 7 | - | 3 | 24 | 2 | 4 | » All matches |
| 2. Bundesliga | 12 | 12 | - | 2 | 911 | 1 | - | - | 1 | 1 | - | » All matches |
| DFB-Pokal | 27 | 26 | 1 | 3 | 2.342 | 1 | - | - | 4 | - | 1 | » All matches |
| Regionalliga Süd (1994-2012) | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| League Cup | 4 | 4 | - | - | 420 | - | - | - | 1 | - | - | » All matches |
| Serie A | 39 | 35 | 4 | 3 | 3.223 | - | - | - | 8 | - | - | » All matches |
| Coppa Italia | 3 | 2 | 1 | - | 258 | - | - | - | - | - | - | » All matches |
| Eredivisie | 2 | - | 2 | - | 34 | - | - | - | 1 | - | - | » All matches |
| Total | 353 | 326 | 27 | 26 | 29.101 | 12 | - | - | 50 | 3 | 6 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| World Cup | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| WC Qualifiers Africa | 8 | 8 | - | - | 720 | 2 | - | - | 1 | - | - | » All matches |
| Friendlies | 7 | 7 | - | 1 | 580 | - | - | - | - | 1 | - | » All matches |
| Olympic Games | 7 | 6 | 1 | - | 557 | - | - | - | - | 1 | - | » All matches |
 | Africa Cup | 12 | 11 | 1 | - | 991 | - | - | - | - | - | - | » All matches |
| Total | 35 | 33 | 2 | 1 | 2.938 | 2 | - | - | 1 | 2 | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 World Cup | 6 | 6 | - | - | 540 | 1 | - | - | 1 | - | - | » All matches |
| Total | 6 | 6 | - | - | 540 | 1 | - | - | 1 | - | - |