Famara Diedhiou put the hosts in front on 20 minutes, before full-back Callum Johnson equalised on the stroke of half-time.
In the second half, the impressive visitors looked favourites to go on an win the tie.
But it wasn’t to be, with Chris Martin firing home the Robins’ winner against the run of play with seven minutes to spare.
But it wasn’t to be, with Chris Martin firing home the Robins’ winner against the run of play with seven minutes to spare.
2 / 4