A penalty was enough for a Coventry reserve side to beat a Bulls XI 1-0 in a friendly in the East Midlands.
The Bulls fielded new Doncaster loan duo James Chambers and James Baxendale alongside the likes of Delroy Facey, Adam Bartlett, and Will Evans and a selection of the club's youth teamers.
The penalty came in the second half, converted by young midfielder Billy Daniels.