Yellow-carded companies remain on the list without impact on their ranking until the investigation is resolved.
He reached the turn in just 30 strokes and carded 11 birdies in all.
Ian Poulter (73) ended one over, while Tiger Woods carded 72 for four over.
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Molinari carded a 67 to reach 17-under-par, one shot clear of Dane Anders Hansen.
Defending champion Silvia Cavalleri carded a 69 on Sunday to finish tied for 29th place.
Saracens wasted the advantage they were given when prop Nick Lloyd was yellow-carded for punching.
France carded 61 to trail by five and Denmark (63) are six off the pace.
O'Hern made a steady start before he carded three successive birdies from the seventh.
Scotland's Catriona Matthew, the only Briton in the event, also carded a two-under 70.
The Crues had Declan Caddell and David Rainey dismissed, with Gregory Curtis red-carded for Warrenpoint.
Keeper Alex McCarthy was red carded for handling outside his area before Snodgrass levelled from close range.
"I changed putters for the first time in probably two years, " said Campbell, who carded seven birdies.
Blues colleague Xavier Rush was also red-carded in Sunday's 23-19 loss that ended Cardiff's Heineken Cup hopes.
And there was further trouble for Edinburgh when Cross was yellow-carded for side entry at the breakdown.
Connacht's frustration was compounded as flanker John Muldoon was yellow-carded for dangerous driving play at a ruck.
Armagh's Vinny Martin was sent-off midway in the first half before Laois' Kevin Meaney was also red-carded.
The game had a bitter ending for Newcastle when Parker was red-carded for a second bookable offence.
Cole was red-carded for a lunge on Laurent Koscielny before David Ngog's driven shot put Liverpool ahead.
Scotland's Colin Montgomerie carded a 71 to finish on nine under par in a tie for 28th.
The 45-year-old carded rounds of 71 and 67 to give him hope going into the final round.
Fulham boss Mark Hughes felt that Essien deserved to be red-carded and also raised questions over Chelsea's goal.
Dufner, runner-up at the PGA Championship last August, carded a two-under 70, go with his opening round 69.
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Defending champion Peter Hanson of Sweden is one shot further back while Denmark's Thomas Bjorn carded a 70.
England's Brian Davis carded 65 to tie for third at 11 under, two strokes behind leader Bryce Molder.
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England's Ian Poulter was left to rue a number of missed opportunities as he carded a one-under-par 71.
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The biggest cheer of the night came moments later after Dallaglio was yellow-carded for infringing at a ruck.
Defending champion Woods carded back-to-back bogeys after the turn which made his chase of the leaders almost impossible.
And, seconds before he was due to come back, lock Hanks was yellow-carded for the very same offence.
Lee McEvilly headed an equaliser but Barrow's Robin Hulbert was red carded after an elbow on Charlie Griffin.
Noble was yellow-carded, but England - who were incensed by the incident - could not find a way through.
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