The last-eight draw
Gloucester, winners in 2006 and 2015, join three other English sides, Wasps, London Irish and Sarries, in the last eight, along with two Scottish sides, Glasgow and Edinburgh, and two French sides, three-time former European champions Toulon and Lyon.
Edinburgh v Wasps
Lyon v Glasgow
Toulon v London Irish
Gloucester v Saracens
Ties to be played weekend of 6-8 May