The 35-year-old has been without a club since leaving German side Werder Bremen in the summer, but he had been training with former club United in October.
"Look forward to seeing Mikael Silvestre in Timbers green at training today (Tuesday)," Paulson wrote on his Twitter page.
Silvestre has not played a competitive match since January 2012.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Inter MiamiInter Miami | 34 | 22 | 8 | 4 | 79 | 49 | 30 | 74 |
| 2 | Columbus Crew | 34 | 19 | 9 | 6 | 72 | 40 | 32 | 66 |
| 3 | FC CincinnatiCincinnati | 34 | 18 | 5 | 11 | 58 | 48 | 10 | 59 |
| 4 | Orlando City | 34 | 15 | 7 | 12 | 59 | 50 | 9 | 52 |
| 5 | Charlotte FCCharlotte FC | 34 | 14 | 9 | 11 | 46 | 37 | 9 | 51 |
| 6 | New York City FCNY City | 34 | 14 | 8 | 12 | 54 | 49 | 5 | 50 |
| 7 | New York Red BullsNY Red Bulls | 34 | 11 | 14 | 9 | 55 | 50 | 5 | 47 |
| 8 | CF MontrealMontreal | 34 | 11 | 10 | 13 | 48 | 64 | -16 | 43 |
| 9 | Atlanta UnitedAtlanta | 34 | 10 | 10 | 14 | 46 | 49 | -3 | 40 |
| 10 | DC United | 34 | 10 | 10 | 14 | 52 | 70 | -18 | 40 |
| 11 | Philadelphia UnionPhiladelphia | 34 | 9 | 10 | 15 | 62 | 55 | 7 | 37 |
| 12 | Toronto | 34 | 11 | 4 | 19 | 40 | 61 | -21 | 37 |
| 13 | Nashville SCNashville | 34 | 9 | 9 | 16 | 38 | 54 | -16 | 36 |
| 14 | New England RevolutionNew England | 34 | 9 | 4 | 21 | 37 | 74 | -37 | 31 |
| 15 | Chicago Fire | 34 | 7 | 9 | 18 | 40 | 62 | -22 | 30 |
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Los Angeles FCLos Angeles | 34 | 19 | 7 | 8 | 63 | 43 | 20 | 64 |
| 2 | Los Angeles GalaxyLA Galaxy | 34 | 19 | 7 | 8 | 69 | 50 | 19 | 64 |
| 3 | Real Salt LakeSalt Lake | 34 | 16 | 11 | 7 | 65 | 48 | 17 | 59 |
| 4 | Seattle SoundersSeattle | 34 | 16 | 9 | 9 | 51 | 35 | 16 | 57 |
| 5 | Houston DynamoHouston | 34 | 15 | 9 | 10 | 47 | 39 | 8 | 54 |
| 6 | Minnesota UnitedMinnesota Utd | 34 | 15 | 7 | 12 | 58 | 49 | 9 | 52 |
| 7 | Colorado RapidsColorado | 34 | 15 | 5 | 14 | 61 | 60 | 1 | 50 |
| 8 | Portland TimbersPortland | 34 | 12 | 11 | 11 | 65 | 56 | 9 | 47 |
| 9 | Vancouver WhitecapsVancouver | 34 | 13 | 8 | 13 | 52 | 49 | 3 | 47 |
| 10 | Austin FCAustin | 34 | 11 | 9 | 14 | 39 | 48 | -9 | 42 |
| 11 | Dallas | 34 | 11 | 8 | 15 | 54 | 56 | -2 | 41 |
| 12 | St Louis City | 34 | 8 | 13 | 13 | 50 | 63 | -13 | 37 |
| 13 | Sporting Kansas CityKansas | 34 | 8 | 7 | 19 | 51 | 66 | -15 | 31 |
| 14 | San Jose EarthquakesEarthquakes | 34 | 6 | 3 | 25 | 41 | 78 | -37 | 21 |
