The 24-year-old joined Castilla from Lucena in 2012, but his contract with the capital outfit was due to expire this summer.
A number of Segunda teams had been credited with an interest, but Rayo have moved to offer the defender the chance to play La Liga football next season.
Quini has also regularly performed in a wide midfield area over the last couple of seasons.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Atletico MadridAtletico | 20 | 13 | 5 | 2 | 34 | 13 | 21 | 44 |
| 2 | Real Madrid | 19 | 13 | 4 | 2 | 43 | 19 | 24 | 43 |
| 3 | Barcelona | 20 | 12 | 3 | 5 | 52 | 23 | 29 | 39 |
| 4 | Athletic Bilbao | 19 | 10 | 6 | 3 | 29 | 17 | 12 | 36 |
| 5 | Villarreal | 19 | 8 | 6 | 5 | 34 | 31 | 3 | 30 |
| 6 | Mallorca | 19 | 9 | 3 | 7 | 19 | 21 | -2 | 30 |
| 7 | Real Sociedad | 19 | 8 | 4 | 7 | 17 | 13 | 4 | 28 |
| 8 | GironaGirona | 20 | 8 | 4 | 8 | 28 | 27 | 1 | 28 |
| 9 | Sevilla | 20 | 7 | 5 | 8 | 23 | 29 | -6 | 26 |
| 10 | Rayo Vallecano | 19 | 6 | 7 | 6 | 22 | 22 | 0 | 25 |
| 11 | Real BetisBetis | 20 | 6 | 7 | 7 | 22 | 26 | -4 | 25 |
| 12 | Osasuna | 19 | 6 | 7 | 6 | 23 | 28 | -5 | 25 |
| 13 | Celta Vigo | 19 | 7 | 3 | 9 | 28 | 30 | -2 | 24 |
| 14 | Las PalmasLas Palmas | 19 | 6 | 4 | 9 | 24 | 29 | -5 | 22 |
| 15 | Leganes | 20 | 5 | 7 | 8 | 19 | 29 | -10 | 22 |
| 16 | Getafe | 20 | 4 | 8 | 8 | 14 | 17 | -3 | 20 |
| 17 | AlavesAlaves | 20 | 5 | 5 | 10 | 24 | 32 | -8 | 20 |
| 18 | Espanyol | 20 | 5 | 4 | 11 | 19 | 32 | -13 | 19 |
| 19 | Real ValladolidValladolid | 20 | 4 | 3 | 13 | 14 | 39 | -25 | 15 |
| 20 | Valencia | 19 | 2 | 7 | 10 | 18 | 29 | -11 | 13 |
| > La Liga Full Table | |||||||||
