Swain out of rest of England series after Australia lock suspended over headbutt

It is an early end to Australia duty for Darcy Swain after he was suspended for his headbutt and handed a two-week ban.

Australia's Darcy Swain will miss the Wallabies' final two tour games with England after he was banned for a headbutt that saw him dismissed in the first Test.

The Brumbies lock was sent off in the first half for clashing heads with Jonny May, leaving the hosts to play the remainder of the match a man down in Perth.

Their numerical disadvantage did not prove costly after a dramatic 30-28 win over the tourists at Optus Stadium, but Swain will now play no role in the next two Tests after World Rugby upheld his red card.

"Having acknowledged mitigating factors, including the player’s acknowledgement of foul play, clean disciplinary record, conduct at the hearing and expression of remorse, the committee granted the player full mitigation of 50 per cent," the committee said in a statement.

"The committee further determined that given the above off-field mitigating factors and that a three-week sanction would be wholly disproportionate given the level and nature of the offence, the sanction was further reduced by an extra week."

Swain, who celebrated his birthday earlier this week, can still appeal against the decision, which will otherwise keep him out of matches against Eddie Jones' side in Brisbane on July 9 and Sydney on July 16.