Lawrence Dallaglio has told his Barbarians side to expect a "demanding" test of their world-class credentials when they face South Africa in Cardiff tomorrow.

A 70,000 crowd is expected at the Millennium Stadium, attracted by a Babas XV which includes superstars like Dallaglio, Christian Cullen, Matt Burke, Agustin Pichot and Ireland's Brian O'Driscoll.

Dallaglio, who packs down for a second time in eight days against the Springboks, predicts a "full-on" fixture.

"South Africa play uncompromising rugby, and I don't think this is going to be any different at all," he said. "This isn't just going to be an exhibition game, it will be full-on rugby.

"You can't fool the public, and they won't be happy to have paid to see high-class rugby and leave knowing that all they've witnessed is the ball being thrown around. South Africa were hurt at losing to England, and I expect Sunday's game to be very demanding."

The Springboks, for whom this could be a Test farewell to Chester Williams and Mark Andrews, won't play second-fiddle.