Dan Bibby’s sudden death try sends GB through to rugby sevens semis

• Extra-time needed to separate deadlock between GB and Argentina• Fiji keep hopes of first ever medal alive by knocking out New ZealandSevens rugby is new to the Olympics but already it feels like a glorious adornment. Even a rainy night in Rio could not dilute the sudden death drama, with Team GB now facing a semi-final against South Africa after a scarcely believable “golden point” extra-time win over Argentina. A tournament which has also seen Japan reach the last four and New Zealand bow out prematurely is proving to be utterly compelling.GB’s triumph was also among the most perverse inte…