Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/2014 - 06/2015 |  | FC Chambly |  France | Defence | |
| 01/2012 - 06/2012 |  | Coton Sport Garoua |  Cameroon | Defence | |
| 07/2008 - 06/2010 |  | 1. FC Köln |  Germany | Defence | 6 |
| 07/2006 - 06/2008 |  | Werder Bremen | Germany | Defence | 5 |
| 07/2005 - 06/2006 |  | Inter |  Italy | Defence | 33 |
| 01/2005 - 06/2005 |  | Brescia Calcio | Italy | Defence | 33 |
| 07/2003 - 06/2004 |  | RCD Espanyol |  Spain | Defence | 2 |
| 08/2002 - 06/2003 |  | Fulham FC |  England | Defence | 27 |
| 07/2000 - 07/2002 |  | Bologna FC | Italy | Defence | 3 |
| 07/1999 - 06/2000 | | Bologna FC | Italy | Defence | 20 |
| 07/1998 - 06/1999 |  | AS Roma | Italy | Defence | 15 |
| 07/1997 - 06/1998 |  | Lucchese | Italy | Defence | 15 |
| 07/1996 - 06/1997 |  | L.R. Vicenza | Italy | Defence | 17 |
| 07/1994 - 06/1996 |  | Canon Yaoundé | Cameroon | Defence | |
| 07/1993 - 06/1994 |  | Fogape | Cameroon | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 12 | 12 | - | 4 | 985 | - | - | - | 2 | - | - | » All matches |
| Champions League Qual. | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Europa League | 16 | 11 | 5 | 1 | 996 | - | - | - | - | 1 | 1 | » All matches |
| Bundesliga | 58 | 56 | 2 | 9 | 4.870 | 2 | - | 5 | 12 | - | - | » All matches |
| DFB-Pokal | 5 | 5 | - | - | 480 | - | - | - | - | - | - | » All matches |
| League Cup | 3 | 3 | - | - | 270 | - | - | - | 2 | - | - | » All matches |
| Premier League | 14 | 13 | 1 | 4 | 1.039 | 1 | - | 1 | 5 | - | 1 | » All matches |
| FA Cup | 1 | - | 1 | - | 34 | - | - | - | - | - | - | » All matches |
| League Cup | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Serie A | 86 | 68 | 18 | 17 | 6.007 | 6 | - | - | 11 | 1 | - | » All matches |
| Serie B | 24 | 23 | 1 | 4 | 1.985 | 2 | - | - | 8 | 1 | - | » All matches |
| Coppa Italia | 17 | 15 | 2 | 1 | 1.306 | - | - | - | 2 | - | - | » All matches |
| Primera División | 26 | 23 | 3 | 6 | 1.788 | 1 | - | - | 8 | 1 | 1 | » All matches |
| Copa del Rey | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 266 | 233 | 33 | 46 | 20.120 | 12 | - | - | 50 | 4 | 3 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | World Cup | 6 | 6 | - | 1 | 534 | - | - | - | 2 | - | - | » All matches |
| WC Qualifiers Africa | 8 | 8 | - | 1 | 707 | - | - | - | - | - | - | » All matches |
| Friendlies | 8 | 8 | - | 3 | 649 | - | - | - | 1 | - | - | » All matches |
| Olympic Games | 6 | 6 | - | - | 600 | - | - | - | 2 | - | - | » All matches |
| Confederations Cup | 3 | 2 | 1 | 1 | 187 | - | - | - | - | - | - | » All matches |
 | Africa Cup | 14 | 13 | 1 | 1 | 1.223 | 1 | - | - | 5 | - | - | » All matches |
| Africa Cup Qual. | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Total | 46 | 44 | 2 | 7 | 3.990 | 1 | - | - | 10 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 World Cup | 4 | 4 | - | - | 360 | - | - | - | 1 | - | - | » All matches |
| Total | 4 | 4 | - | - | 360 | - | - | - | 1 | - | - |