Tigers save their best for Europe in order to dismantle Scarlets

The Tigers had been just 13-10 ahead at the break thanks to a try from prop Martin Castrogiovanni and eight points from the boot of fly-half Toby Flood.

But they ran riot after the break as their physicality at the breakdown and set-piece prowess proved too much for the Welsh, with Ben Youngs, man-of-the-match Thomas Waldrom, Tom Croft (2) and Matty Smith all crossing as the bonus-point win was sealed to leave the Tigers four points clear of Perpignan at the top of the section.

Cockerill was understandably delighted with his side's second-half showing as the East Midlands outfit turned in their best display of the season to date.

"I felt we needed more points out of the first half because at half-time they were very much in the game," he said. "They took their try well and we'd have liked to have scored a couple more of our own but we didn't take our opportunities.

"But we kept the intensity and composure and those five tries in the second half included some quality bits of rugby."

Wasps completed their first win in Pool Six with a bonus-point 38-26 victory over Glasgow.

Tries from Joe Simpson, Tom Varndell, Ben Jacobs and Dominic Waldouck helped the Aviva Premiership club climb to second place, two points behind leaders Toulouse.

Brendan Venter has warned the International Rugby Board that the game will be harmed if they do not address the current problems at the breakdown.

Saracens' Rugby Director is furious that French referee Christophe Berdos failed to sin-bin three Leinster players during the second half of their 25-23 defeat at Wembley on Saturday when a rash of penalties prevented his team gaining momentum.

And he threatened to return his team to playing a tedious kicking game in Europe and then reverting to their running game in league games.

Venter said: "Before the Heineken Cup began, I asked if we would have a conference so all the officials from abroad were in tune as to the new interpretations of the laws.

"Instead, we got some European referees in the Premiership, but there is a real danger that if we don't take action going into a World Cup year, the game of rugby is going to die, be killed stone dead because the public won't come to watch."

Heineken Cup holders Toulouse delivered a workmanlike performance to collect priceless points on the road in their quest for a fifth European title on Saturday. It was only the French giants' eighth win from 15 European starts on Welsh soil, and they were indebted to a kicking masterclass from fly-half David Skrela against Newport-Gwent Dragons.

Munster added some much-needed fizz to their Heineken Cup challenge by scoring a comprehensive bonus point win over Toulon at Thomond Park.

In a game that crackled with intensity and high octane rugby, the Irish province recovered from leaking a try after just 56 seconds to hit back with six converted scores. Stand-in captain Denis Leamy, Tony Buckley, Doug Howlett (2), man-of-the-match Mick O'Driscoll and James Coughlan all crossed for the two-time champions, with Ronan O'Gara kicking 15 points.

Toulon were far from overawed, but tries from Jean-Philippe Genevois and skipper Joe van Niekerk and a long-range drop goal from Jonny Wilkinson were their only high points as they were put to the sword.