The 30-year-old was released by Valencia at the start of the month and recent reports had linked him with a move to Tottenham Hotspur.
However, he has opted to join the Portuguese champions and has penned a two-year contract with the club.
Jonas has scored twice in eight appearances for Brazil and won his last cap in 2012.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Sporting Lisbon | 29 | 25 | 2 | 2 | 84 | 27 | 57 | 77 |
| 2 | Benfica | 29 | 22 | 4 | 3 | 65 | 23 | 42 | 70 |
| 3 | Porto | 29 | 18 | 5 | 6 | 53 | 23 | 30 | 59 |
| 4 | Braga | 29 | 18 | 5 | 6 | 61 | 40 | 21 | 59 |
| 5 | Vitoria de GuimaraesGuimaraes | 29 | 17 | 6 | 6 | 45 | 29 | 16 | 57 |
| 6 | MoreirenseMoreirense | 29 | 12 | 7 | 10 | 30 | 33 | -3 | 43 |
| 7 | AroucaArouca | 29 | 13 | 4 | 12 | 50 | 39 | 11 | 43 |
| 8 | FamalicaoFamalicao | 29 | 8 | 11 | 10 | 31 | 36 | -5 | 35 |
| 9 | Casa Pia | 29 | 8 | 8 | 13 | 29 | 41 | -12 | 32 |
| 10 | SC FarenseFarense | 29 | 8 | 7 | 14 | 38 | 41 | -3 | 31 |
| 11 | Rio AveRio Ave | 29 | 5 | 15 | 9 | 31 | 37 | -6 | 30 |
| 12 | BoavistaBoavista | 29 | 7 | 8 | 14 | 34 | 55 | -21 | 29 |
| 13 | Estoril PraiaEstoril | 29 | 8 | 5 | 16 | 43 | 50 | -7 | 29 |
| 14 | Gil Vicente | 29 | 7 | 7 | 15 | 36 | 48 | -12 | 28 |
| 15 | Estrela Amadora | 29 | 6 | 10 | 13 | 31 | 45 | -14 | 28 |
| 16 | PortimonensePortimonense | 29 | 7 | 6 | 16 | 32 | 62 | -30 | 27 |
| 17 | ChavesChaves | 29 | 5 | 7 | 17 | 28 | 60 | -32 | 22 |
| 18 | Vizela | 29 | 4 | 9 | 16 | 28 | 60 | -32 | 21 |
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