England's 12 Premiership clubs will share in a compensation pot of around £13m after settling a dispute with the RFU.
A stunned Conor O'Shea described Harlequins' 39-0 home loss at the hands of Saracens as an "incredible emotional low".
Harlequins will be eager to gain revenge over Saracens when they meet in a repeat of the semi-final clash at the Stoop.
Harlequins held on to claim a 20-15 victory over London Irish in their season opener at Twickenham on Saturday.
Conor O'Shea was pleased with the way Harlequins dug in after they struggled to a hard-fought victory over London Irish.
Saracens, Wasps, London Irish and Harlequins feature in London Double Header, Sale, Bath, Leicester and Newcastle play.
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