Swindon have accepted a £350,000 bid from Bristol City for central defender Aden Flint, BBC Wiltshire reports.
Kevin MacDonald's side recently
took up an option on Flint's contract,
tying him at the club for another season.
They rejected an offer from City earlier this week,
but the 23-year-old then submitted a written transfer request, which was turned down.
However, City's improved offer has persuaded Swindon to allow him to discuss personal terms with them.
Both sides will be playing in League One next season following City's relegation and Swindon's defeat at the semi-final stage of the play-offs.
Speaking about Flint after the previous bid was rejected, City head coach Sean O'Driscoll told
BBC Radio Bristol:
"He'd be somebody we feel that would fill the right centre-half gap that seems to have been a problem since Steven Caulker left.
"He's a good age and someone we think we can develop further."
Former England C international Flint has made a total of 79 appearances for Swindon since joining them from non-league Alfreton Town in 2011, and was a member of their League Two promotion-winning side in 2012.