Super League champions Leeds have hardened as favourites to lift the Carnegie Challenge Cup after surviving a scare at the hands of Harlequins.
The Rhinos needed two late tries to secure a 36-26 fourth-round win over the Londoners to book their place in Monday evening's quarter-final draw.
Quins had battled back from 24-4 down to lead 26-24, scoring 22 unanswered points in the process, until Jamie Peacock crashed over for the all-important try three minutes from the end and Danny McGuire then completed his hat-trick in the dying seconds.
Leeds coach Brian McClennan singled out for praise Great Britain captain Peacock, who played the full 80 minutes in blistering heat.
"Jamie Peacock was immense for us today," said a relieved McClennan.
"For such a big guy, he did very well in the heat to stay on the pitch for the whole match and showed a lot of guts."
Among the Rhinos' tryscorers was young full-back Ben Jones-Bishop, who was deputising for New Zealand international Brent Webb and opened the scoring in the ninth minute.
Full-back Clint Greenshields' early sin-binning cost Catalans dear as Bradford produced a clinical 46-16 eight-try demolition of last season's beaten finalists.
Greenshields was sent to the bin in the fifth minute for holding down opposite number Michael Platt in Bradford's first meaningful attack and the Bulls made their numerical advantage pay in spectacular fashion.
They ran in four tries during his absence as Semi Tadulala quickly broke the French side's resistance to claim the first of his three touchdowns before Sam Burgess and Dave Halley added further scores.
Tadulala then crossed again and with Paul Deacon converting all four tries, the Catalans were 24-0 down when Greenshields walked sheepishly back onto the field in the 15th minute.
Hull KR overcame a disastrous start to comfortably book their place in the last eight with a 42-22 win over Huddersfield at Craven Park.
The Giants, the 2006 runners-up, made a dream start by racing into a 12-0 lead after 17 minutes but finished a well beaten side and, with just two wins from their last 11 matches, this result can only increase the pressure on coach Jon Sharp.
It was 22-22 until Rovers winger Peter Fox scored the second of his two tries after 53 minutes but two late touchdowns emphasised the home side's superiority.
Form team Wakefield demonstrated the gulf between Super League and the part-time National League with a 58-6 thrashing of Barrow, while Hull held off a spirited challenge from Widnes to triumph 32-18 at the Halton Stadium.
Oldham will fly the flag for the National League following a 58-12 win at Dewsbury, where second rower Tommy Goulden scored four of their 10 tries, and they will join holders St Helens in the draw.
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