The 37-year-old midfielder has made over 400 appearances for the side since arriving in 1997.
"I have committed myself to do the right thing and fight for the club I grew up supporting," he told the club's official website. "I am satisfied to remain with this club and fight for these colours."
Osasuna narrowly avoided relegation from the Spanish top flight by finishing in 16th place in the table last season.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| C | Real Madrid | 34 | 27 | 6 | 1 | 74 | 22 | 52 | 87 |
| 2 | GironaGirona | 34 | 23 | 5 | 6 | 73 | 42 | 31 | 74 |
| 3 | Barcelona | 34 | 22 | 7 | 5 | 70 | 43 | 27 | 73 |
| 4 | Atletico MadridAtletico | 34 | 21 | 4 | 9 | 63 | 39 | 24 | 67 |
| 5 | Athletic Bilbao | 34 | 17 | 10 | 7 | 55 | 33 | 22 | 61 |
| 6 | Real Sociedad | 34 | 14 | 12 | 8 | 48 | 35 | 13 | 54 |
| 7 | Real BetisBetis | 34 | 13 | 13 | 8 | 43 | 39 | 4 | 52 |
| 8 | Valencia | 34 | 13 | 8 | 13 | 37 | 39 | -2 | 47 |
| 9 | Villarreal | 34 | 12 | 9 | 13 | 56 | 58 | -2 | 45 |
| 10 | Getafe | 34 | 10 | 13 | 11 | 41 | 47 | -6 | 43 |
| 11 | AlavesAlaves | 34 | 11 | 8 | 15 | 32 | 38 | -6 | 41 |
| 12 | Sevilla | 34 | 10 | 11 | 13 | 45 | 46 | -1 | 41 |
| 13 | Osasuna | 34 | 11 | 6 | 17 | 37 | 51 | -14 | 39 |
| 14 | Las PalmasLas Palmas | 34 | 10 | 7 | 17 | 30 | 43 | -13 | 37 |
| 15 | Celta Vigo | 34 | 8 | 10 | 16 | 40 | 52 | -12 | 34 |
| 16 | Rayo Vallecano | 34 | 7 | 13 | 14 | 27 | 43 | -16 | 34 |
| 17 | Mallorca | 34 | 6 | 14 | 14 | 27 | 40 | -13 | 32 |
| 18 | CadizCadiz | 34 | 4 | 14 | 16 | 23 | 49 | -26 | 26 |
| 19 | Granada | 34 | 4 | 9 | 21 | 36 | 64 | -28 | 21 |
| R | Almeria | 34 | 2 | 11 | 21 | 33 | 67 | -34 | 17 |
| > La Liga Full Table | |||||||||
