Some well-orchestrated French pressure yielded points when Samoan lock Tekori burrowed over, requiring the approval of the Television Match Official.

BBC: Northampton 18-14 Castres

If subjected to pressure, though, the molecules lock together and behave like a solid.

ECONOMIST: Monitor: Fluid defences | The

Adaptable back-row Jon Thomas is also a probable but the resurgence of Owen, a natural number eight who impressed as a stand-in lock, could put selection pressure on the Osprey.

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For many it looked like the stock would be under serious pressure as some 800 million shares were released from their lock-up restrictions on Wednesday.

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But after losing the talismanic Rush with a hand injury - which forced them to play a lock in the back row - the Blues found themselves under severe pressure in their own 22, returning Lion Matthew Rees being denied a touchdown after a prolonged examination by the TV official.

BBC: Cardiff Blues 19-15 Scarlets

The visitors from Pretoria continued to pile on the pressure, but the home side remained firm in defence and edged clear when replacement lock Van den Berg found a way through.

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This selling pressure will be relentless in the upcoming weeks as another 777 million shares are freed from lock-up restrictions in mid-November.

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