Heineken Champions Cup: Harlequins 36-33 Castres

Harlequins produced yet another late comeback as Alex Dombrandt completed his hat-trick with the clock deep in the red to decide a 10-try thriller against Castres.

French side Castres, playing for their place in the last 16, seemed set to hold out after a strong second half.

But roared on by the Stoop and with fly-half Marcus Smith off the bench, the hosts found a way once more.

Dombrandt tapped and went from close in and squirmed over in the 85th minute.

His score survived a review by the video official with the visitors certain that it was either short of the line or not properly grounded.

But referee Mike Adamson ruled in Quins' favour to settle a rollercoaster encounter and the celebrating home fans spared little time on the visitors' sense of injustice.

The victory completes a clean sweep of Harlequins' Champions Cup pool games, with their first appearance in the knock-out stages since 2013 already assured before kick-off.

Harlequins will discover their last 16 opponent after this weekend's round of matches.

More to follow

Harlequins: David; Lynagh, Jones, Esterhuizen, Murley; Allan, Steele; Marler, Musk, Kerrod, Lamb, Tizard, Taulani, Wallace, Dombrandt (capt)

Replacements: Riley, Garcia Botta, Wilson, Hammond, White, Gjaltema, Smith, Marchant

Castres: Larregain; Zeghdar, Aguillon, Cocagi, Nakosi; Botica, Kockott; Tichit, Barlot, Guillamon, Vanverberghe, Whetton, Champion de Crespigny, Kafatolu, Kornath

Replacements: Ngauamo, Nostadt, Tierney, Hannoyer, Raisuqe, Fernandez, Le Brun, Botitu

Referee: Ref: Mike Adamson (Scotland)