Driver, 25, has reportedly attracted the interest of MLS outfit Houston Dynamo with a number of impressive displays this season.
Locke told Hearts TV: "There's a possibility that Andrew could be leaving. We are still waiting to find out what the situation is."
Driver has made 28 appearances for the Scottish outfit this season, scoring two goals.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Inter MiamiInter Miami | 12 | 7 | 3 | 2 | 32 | 18 | 14 | 24 |
| 2 | FC CincinnatiCincinnati | 11 | 6 | 3 | 2 | 13 | 9 | 4 | 21 |
| 3 | Toronto | 11 | 6 | 1 | 4 | 14 | 14 | 0 | 19 |
| 4 | New York Red BullsNY Red Bulls | 11 | 4 | 5 | 2 | 16 | 16 | 0 | 17 |
| 5 | Columbus Crew | 10 | 3 | 6 | 1 | 12 | 9 | 3 | 15 |
| 6 | Philadelphia UnionPhiladelphia | 10 | 3 | 5 | 2 | 19 | 16 | 3 | 14 |
| 7 | DC United | 11 | 3 | 5 | 3 | 16 | 17 | -1 | 14 |
| 8 | Charlotte FCCharlotte FC | 11 | 4 | 2 | 5 | 12 | 13 | -1 | 14 |
| 9 | New York City FCNY City | 11 | 4 | 2 | 5 | 11 | 12 | -1 | 14 |
| 10 | Atlanta UnitedAtlanta | 10 | 3 | 3 | 4 | 14 | 11 | 3 | 12 |
| 11 | CF MontrealMontreal | 10 | 3 | 3 | 4 | 13 | 20 | -7 | 12 |
| 12 | Nashville SCNashville | 10 | 2 | 5 | 3 | 14 | 18 | -4 | 11 |
| 13 | Chicago Fire | 11 | 2 | 4 | 5 | 11 | 19 | -8 | 10 |
| 14 | Orlando City | 10 | 2 | 3 | 5 | 11 | 18 | -7 | 9 |
| 15 | New England RevolutionNew England | 10 | 2 | 1 | 7 | 7 | 18 | -11 | 7 |
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Real Salt LakeSalt Lake | 11 | 6 | 3 | 2 | 18 | 9 | 9 | 21 |
| 2 | Minnesota UnitedMinnesota Utd | 10 | 6 | 2 | 2 | 17 | 11 | 6 | 20 |
| 3 | Los Angeles GalaxyLA Galaxy | 11 | 5 | 4 | 2 | 21 | 17 | 4 | 19 |
| 4 | Vancouver WhitecapsVancouver | 10 | 5 | 3 | 2 | 18 | 10 | 8 | 18 |
| 5 | Colorado RapidsColorado | 11 | 5 | 3 | 3 | 18 | 15 | 3 | 18 |
| 6 | Austin FCAustin | 11 | 4 | 4 | 3 | 14 | 13 | 1 | 16 |
| 7 | Los Angeles FCLos Angeles | 11 | 4 | 3 | 4 | 19 | 19 | 0 | 15 |
| 8 | Houston DynamoHouston | 10 | 4 | 2 | 4 | 9 | 10 | -1 | 14 |
| 9 | St Louis City | 10 | 2 | 7 | 1 | 15 | 14 | 1 | 13 |
| 10 | Sporting Kansas CityKansas | 11 | 2 | 5 | 4 | 18 | 19 | -1 | 11 |
| 11 | Seattle SoundersSeattle | 11 | 2 | 4 | 5 | 13 | 13 | 0 | 10 |
| 12 | Portland TimbersPortland | 11 | 2 | 4 | 5 | 20 | 23 | -3 | 10 |
| 13 | Dallas | 10 | 2 | 2 | 6 | 10 | 15 | -5 | 8 |
| 14 | San Jose EarthquakesEarthquakes | 11 | 2 | 1 | 8 | 17 | 26 | -9 | 7 |
