It was a night to forget as we crashed out the League Cup, writes James Barrett-Sterling.
There was a debut for Charlie Morris, whom had joined from Sutton United over the weekend, while Michael Aziaya, Peter Adeniyi and Courtney Swaby came in. Ex-Robins Jordan Clarke and Mu Maan were in the visitors' line-up.
Both sets of fans were in fine voice as the match began and Maan almost gave Casuals an early lead, but his first-time hit from 20 yards bent wide of Billy Bishop's right-hand post.
A couple of tasty challenges flew in - which, in hindsight, set the tone for the game a bit later - as both sides tried to get on the front foot. Antonio was booked for pulling back a galloping Raheem Sterling-Parker on 14 minutes, but Paris Hamilton-Downes headed the free kick delivery straight at goalkeeper Mo Maan.
The returning Clarke didn't endear himself to his old supporters on 21 minutes as he burst into our box and promptly received a yellow card for a blatant dive under no contact from the covering Dudley.
We won another free kick on 24 minutes and Cheadle stepped up - his firm shot hit the wall and Sterling-Parker and Jerson dos Santos kept the ball alive until a clearence found Aziaya. He dinked a lovely ball over the top for Adeniyi to cushion back into the path of Dudley, but the centre back's eventual effort lacked the power to seriously test Maan.
Aziaya was at it again on 27 minutes as he won possession deep inside Casuals territory before slipping in Sterling-Parker, but the striker was on the stretch and he couldn't generate enough power to beat the keeper.
Casuals responded and Maan came even closer to scoring as Gabriel Odunaike teed him up from 18 yards and his thumping effort rattled Bishop's crossbar.
A late challenge by Mfula on Cheadle sparked a melee just after the half-hour mark - several players got involved and it took the officials a couple of minutes to sort things out. Once the dust had settled, Mfula and Maan got booked - the latter for stepping on Cheadle as our man was trying to get on his feet.
We almost broke the deadlock on 41 minutes as we broke from the edge of our area and Morris played Swaby in on goal, but Mo Maan got down well to parry the youngster's effort off target.
Their keeper was then booked for dissent as, for the second time in the opening 45, he left his area to remonstrate with officials over a decision.
But, just as it looked like the scoresheet would remain blank after an energetic half, Clarke produced a moment of magic from 20 yards as his powerful strike beat the despairing dive of Bishop.
HALF-TIME: 0 - 1
It only took five minutes of the second-half for the next goal to arrive - Casuals broke from one of our attacks and Mfula beat our backline to race in and flick a low shot past the exposed Bishop.
Dudley then picked up a caution and had a goalbound header on a corner deflected wide, while Michael Dixon was introduced for Swaby.
Another corner we had was cleared inside the visitors' six yard area and they broke, Rio Davidson-Phipps doing well to block Mfula's attempt from 18 yards.
But, from the resultant corner, Hannigan came in unmarked to head the ball inside the far post to make it 3-0 to Casuals.
We sent on Joel Flavien-Howard and Michael Onovwigun as fresh legs but we were grateful to Bishop for smartly stopping an angled drive by Carvalho on 70 minutes.
Then, after we'd won a free kick on the far side, the referee went over to speak to his assistant. The upshot saw Adeniyi receive a second yellow card for an off-the-ball incident and made a hard task even harder.
The only time we came close to scoring can in added time when Davidson-Phipps got some room down the right but his low ball across the six yard box was just too far in front of Dixon.
We are back to league action with a visit to Bishop's Stortford on Saturday 22nd September, then we travel to Haringey Borough on Saturday 29th September.
Carshalton Athletic: Bishop; Davidson-Phipps, Dudley, Hamilton-Downes (c), Cheadle; Adeniyi, Aziaya, Morris (Onovwigun - 68); Swaby (Dixon - 56), dos Santos, Sterling-Parker (Flavien-Howard - 68)
Unused subs: Price, Antwi
Booked: Adeniyi, Dudley, Onovwigun
Sent off: Adeniyi
Corinthian Casuals: Mo Mann, Smith, Tucker, Strange, Hannigan, Ekim, Mu Mann, Antonio, Clarke (Cheklit - 69), Mfula (Carvalho - 69), Odunaike (Murray - 88)
Unused subs: Morgan, Cunningham
Goals: Clarke (45), Mfula (50), Hannigan (65)
Booked: Antonio, Clarke, Mfula, Mo Mann, Mu Maan