Striker Kemar Roofe was shown a red card for a high and wild challenge on Slavia Prague goalkeeper Ondrej Kolar.
The Rangers attacker had only been on the pitch for five minutes when he was chasing a deep ball into the Slavia box during the Europa League clash.
Roofe went in studs-up – although clearly going for the ball – and caught the Czech goalkeeper flush in the face before being given his marching orders in the last 16 tie.
The clash brought a long stoppage in play as Kolar received treatment on the park.
It was a horrible challenge that meant the shotstopper had to be stretchered off and replaced by youngster Matyás Vágner.
It handed Steven Gerrard 's side an uphill battle, before they went down to nine men when Leon Balogun was shown a second booking.
Peter Olayinka and Nicolae Stanciu scored to hand the visitors the aggregate victory.
