Twickenham to host 10, 000 fans
The venue will host supporters this weekend
Twickenham will host crowds of 10,000 for both of this weekend's European finals.
Friday night's Challenge Cup clash between Leicester and Montpellier takes place the day before La Rochelle and Toulouse collide at the same venue in the Heineken Champions Cup showpiece.
It will be the first time spectators have been allowed into the ground since the Autumn Nations Cup final between England and France in December.
Rugby Football Union chief executive Bill Sweeney said
"The fans really do make the game and we hope everyone is looking forward to attending live rugby again at Twickenham''.