No Americans in semi-final at Accenture Match Play?

Question

When was the last time no American players made it through to the semis at the WGC at Arizona?

Answer 1

Actually, before this year it's never happened before in the tournament's admittedly modest 12-year history. The US's last hope in the competition this year was Stewart Cink, who was beat 5&4 by Paul Casey on Friday.