The 33-year-old, who left Portsmouth in the summer, trained with the club on Monday, but it is not yet clear whether he will be offered a contract.
"Ricardo is here for the week and we will take it from there," Town boss Paul Jewell told the club's official website.
Rocha made six international appearances for Portugal.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 18 | 14 | 3 | 1 | 45 | 17 | 28 | 45 |
| 2 | Nottingham ForestNott'm Forest | 19 | 11 | 4 | 4 | 26 | 19 | 7 | 37 |
| 3 | Arsenal | 18 | 10 | 6 | 2 | 35 | 16 | 19 | 36 |
| 4 | Chelsea | 19 | 10 | 5 | 4 | 38 | 23 | 15 | 35 |
| 5 | Newcastle UnitedNewcastle | 19 | 9 | 5 | 5 | 32 | 21 | 11 | 32 |
| 6 | Manchester CityMan City | 19 | 9 | 4 | 6 | 32 | 26 | 6 | 31 |
| 7 | Bournemouth | 19 | 8 | 6 | 5 | 29 | 23 | 6 | 30 |
| 8 | Fulham | 19 | 7 | 8 | 4 | 28 | 25 | 3 | 29 |
| 9 | Aston Villa | 19 | 8 | 5 | 6 | 28 | 31 | -3 | 29 |
| 10 | Brighton & Hove AlbionBrighton | 19 | 6 | 9 | 4 | 29 | 28 | 1 | 27 |
| 11 | Tottenham HotspurSpurs | 19 | 7 | 3 | 9 | 41 | 28 | 13 | 24 |
| 12 | Brentford | 18 | 7 | 3 | 8 | 32 | 32 | 0 | 24 |
| 13 | West Ham UnitedWest Ham | 19 | 6 | 5 | 8 | 23 | 35 | -12 | 23 |
| 14 | Manchester UnitedMan Utd | 19 | 6 | 4 | 9 | 21 | 26 | -5 | 22 |
| 15 | Crystal Palace | 19 | 4 | 8 | 7 | 20 | 27 | -7 | 20 |
| 16 | Everton | 18 | 3 | 8 | 7 | 15 | 24 | -9 | 17 |
| 17 | Wolverhampton WanderersWolves | 19 | 4 | 4 | 11 | 31 | 42 | -11 | 16 |
| 18 | Ipswich TownIpswich | 19 | 3 | 6 | 10 | 18 | 33 | -15 | 15 |
| 19 | Leicester CityLeicester | 19 | 3 | 5 | 11 | 22 | 42 | -20 | 14 |
| 20 | Southampton | 19 | 1 | 3 | 15 | 12 | 39 | -27 | 6 |
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