The 24-year-old joined the Spanish side in 2007 but spent last season on loan at Hercules.
Drenthe has made one appearance for the Netherlands.
The Goodison Park club sold midfielder Mikel Arteta to Arsenal for a fee believed to be in the region of £10m.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Real Madrid | 31 | 24 | 6 | 1 | 67 | 20 | 47 | 78 |
| 2 | Barcelona | 31 | 21 | 7 | 3 | 62 | 34 | 28 | 70 |
| 3 | GironaGirona | 31 | 20 | 5 | 6 | 63 | 39 | 24 | 65 |
| 4 | Atletico MadridAtletico | 31 | 19 | 4 | 8 | 59 | 36 | 23 | 61 |
| 5 | Athletic Bilbao | 31 | 16 | 9 | 6 | 51 | 29 | 22 | 57 |
| 6 | Real Sociedad | 31 | 13 | 11 | 7 | 45 | 33 | 12 | 50 |
| 7 | Valencia | 31 | 13 | 8 | 10 | 34 | 32 | 2 | 47 |
| 8 | Real BetisBetis | 31 | 11 | 12 | 8 | 38 | 37 | 1 | 45 |
| 9 | Villarreal | 31 | 10 | 9 | 12 | 49 | 54 | -5 | 39 |
| 10 | Getafe | 31 | 9 | 12 | 10 | 37 | 43 | -6 | 39 |
| 11 | Osasuna | 31 | 11 | 6 | 14 | 36 | 44 | -8 | 39 |
| 12 | Las PalmasLas Palmas | 31 | 10 | 7 | 14 | 29 | 35 | -6 | 37 |
| 13 | Sevilla | 31 | 8 | 10 | 13 | 39 | 44 | -5 | 34 |
| 14 | AlavesAlaves | 31 | 8 | 8 | 15 | 26 | 38 | -12 | 32 |
| 15 | Mallorca | 31 | 6 | 13 | 12 | 25 | 36 | -11 | 31 |
| 16 | Rayo Vallecano | 31 | 6 | 13 | 12 | 25 | 38 | -13 | 31 |
| 17 | Celta Vigo | 31 | 6 | 10 | 15 | 33 | 46 | -13 | 28 |
| 18 | CadizCadiz | 31 | 4 | 13 | 14 | 21 | 41 | -20 | 25 |
| 19 | Granada | 31 | 3 | 8 | 20 | 32 | 60 | -28 | 17 |
| 20 | Almeria | 31 | 1 | 11 | 19 | 30 | 62 | -32 | 14 |
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