Bristol City knocked 10-man West Ham out of the FA Cup after a 1-0 win in the third-round replay on Tuesday night.
Tommy Conway latched onto a Konstantinos Mavropanos back-pass to round Lukasz Fabianski and net the only goal of the game early on.
Said Benrahma reacted to a firm challenge from Joe Williams by kicking out at the City man which saw the Algerian receive red.
The Robins will host either Nottingham Forest or Blackpool in the next round of the competition.
It was a lively start from the hosts, who were looking to cause an upset in front of a raucous Ashton Gate crowd.
The decibel level went up even further when just three minutes in, Conway opened the scoring.
Mavropanos’ back pass was too short for Lukasz Fabianski, and the Scottish striker nipped in front of the Pole knocked the ball around him and calmly slotted home.
The Hammers took a while to settle into the match but went close through Danny Ings and Mavropanos before the 25-minute mark.
West Ham began to twist the screw and it took a goal-saving clearance from Cam Pring to deny Maxwel Cornet equalising.
The winger had another chance minutes later as City were pushed back for a spell, but the visitors couldn't make any further inroads on the Robins goal before the break.
David Moyes’ side came out in the second half in search of a leveller, and their task was made even more difficuly when Benrahma saw red before the 50-minute mark.
Williams’ tough but fair tackle on the winger sparked a reaction from Benrahma, who kicked his legs out at the midfielder’s midriff. The referee took his time before brandishing the red card.
Moyes' men tried to force a way back into the game as time ticked down, but Liam Manning's side always looked comfortable, and deserve their place in the fourth round.
1. Max O'Leary - 7
Wasn’t forced into any saves in the first period but was generally good from corners and with his feet. Did drop a ball from a Hammers corner but luckily George Tanner was on hand to spare his blushes. Wasn’t much busier after the break amid the West Ham sending-off, but made a brilliant reaction stop to push Vladimir Coufal’s flying volley over the crossbar.
2. George Tanner - 8
Another solid display from the right-back. Was assured up against Said Benrahma and made some smart recovery tackles. Steady on the ball and enjoyed the change of role as part of a back three.
3. Zak Vyner - 7
Made an error early on which Max O’Leary cleared and eventually led to the opener, and played a few loose passes but always recovered well and was as aggressive and tough as ever in the challenge.
4. Rob Dickie - 7
Coped with Maxwel Cornet’s pace well, particularly with City’s high line, and was solid in the air as usual. Like Zak Vyner, made a couple of errors when under pressure but always responded well and looked comfortable.