The manager has a few selection issues to contend for the Group A opener at Tynecastle as Liam Boyce and Michael Smith are away on international duty, and Peter Haring and Andy Halliday unlikely to be fit enough for selection.
Ccould this be the starting XI Neilson will go with for his first match back in charge?
5. Ben Garuccio
The Australian is expected to line up at left back Photo: Mark Scates - SNS Group
6. Olly Lee
Returned to the club in the summer after spending last season on loan at Gillingham Photo: Mark Scates - SNS Group
7. Andy Irving
The youngster will operate alongside Lee in the midfield engine room Photo: Mark Scates - SNS Group
8. Jordan Roberts
Winger set for competitive Hearts debut will operate off the right but can interchange with Frear on the left Photo: Mark Scates - SNS Group