Deacon double downs Coventry
Following a fairly quiet first half which saw Marcus Tudgay go close and Charlie Lee force a parrying save from Lee Burge, the game sprang to life shortly after the break.
Reda Johnson brought down a Boro trialist inside the box after 56 minutes and substitute Deacon scored from the resulting spot-kick.
Six minutes later Deacon doubled the advantage – again from the penalty spot – after Jordan Clarke was penalised for a foul on Adam Marriott.
Tudgay pulled a goal back with a calm finish midway through the second half but Coventry could not find an equaliser.