The 24-year-old has made the move to the Scottish champions after he had fallen down the pecking order with Rubin Kazan.
He will arrive in Glasgow tomorrow and is expected to be a part of Ronny Deila's squad for Sunday's trip to Dundee.
The winger has represented Ghana on 19 occasions - a haul which includes two appearances at this summer's World Cup against Germany and Portugal.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| Championship Group | |||||||||
| C | Celtic | 5 | 5 | 0 | 0 | 95 | 30 | 65 | 93 |
| 2 | RangersRangers | 5 | 3 | 1 | 1 | 87 | 32 | 55 | 85 |
| 3 | Hearts | 5 | 1 | 3 | 1 | 54 | 42 | 12 | 68 |
| 4 | Kilmarnock | 5 | 1 | 2 | 2 | 46 | 44 | 2 | 56 |
| 5 | St Mirren | 5 | 1 | 1 | 3 | 46 | 52 | -6 | 47 |
| 6 | Dundee | 5 | 0 | 1 | 4 | 49 | 68 | -19 | 42 |
| Relegation Group | |||||||||
| 1 | Aberdeen | 5 | 4 | 1 | 0 | 48 | 52 | -4 | 48 |
| 2 | Hibernian | 5 | 2 | 1 | 2 | 52 | 59 | -7 | 46 |
| 3 | Motherwell | 5 | 2 | 0 | 3 | 56 | 59 | -3 | 43 |
| 4 | St Johnstone | 5 | 1 | 1 | 3 | 29 | 54 | -25 | 35 |
| 5 | Ross County | 5 | 1 | 2 | 2 | 38 | 67 | -29 | 35 |
| R | Livingston | 5 | 2 | 1 | 2 | 29 | 70 | -41 | 25 |
| First Phase | |||||||||
| C | Celtic | 33 | 24 | 6 | 3 | 80 | 26 | 54 | 78 |
| 2 | RangersRangers | 33 | 24 | 3 | 6 | 72 | 23 | 49 | 75 |
| 3 | Hearts | 33 | 19 | 5 | 9 | 46 | 34 | 12 | 62 |
| 4 | Kilmarnock | 33 | 13 | 12 | 8 | 43 | 34 | 9 | 51 |
| 5 | St Mirren | 33 | 12 | 7 | 14 | 38 | 43 | -5 | 43 |
| 6 | Dundee | 33 | 10 | 11 | 12 | 44 | 54 | -10 | 41 |
| 7 | Hibernian | 33 | 9 | 12 | 12 | 44 | 51 | -7 | 39 |
| 8 | Motherwell | 33 | 8 | 13 | 12 | 46 | 51 | -5 | 37 |
| 9 | Aberdeen | 33 | 8 | 11 | 14 | 35 | 49 | -14 | 35 |
| 10 | St Johnstone | 33 | 7 | 10 | 16 | 24 | 46 | -22 | 31 |
| 11 | Ross County | 33 | 7 | 9 | 17 | 32 | 56 | -24 | 30 |
| R | Livingston | 33 | 3 | 9 | 21 | 22 | 59 | -37 | 18 |
| > Scottish Premiership Full Table | |||||||||
