Costa Rica 4-0 USA: Jurgen Klinsmann hurt by worst qualifying defeat in 36 years
The United States of America suffered their worst World Cup qualifying defeat for 36 years when they were beaten 4-0 by Costa Rica on Tuesday.
Joel Campbell scored twice for the hosts, with Johan Venegas and Christian Bolanos also on target.
USA coach Jurgen Klinsmann, whose side have lost both their opening qualifying games, called it "the defeat that hurts most" of his five-year tenure.
"A very, very bitter moment for us. There's no doubt about it," he said.
The USA had not lost a qualifier by four goals since a 5-1 defeat by Mexico in November 1980.
They sit bottom of the six-country qualifying group, below the likes of Panama and Trinidad & Tobago, having also lost to Mexico on Friday.
The top three teams qualify for the 2018 tournament in Russia, and the fourth-placed finisher advances to a play-off against Asia's fifth-placed nation.
"We're going to have to look collectively real hard in the mirror at ourselves and understand it's not been a good start," said captain Michael Bradley.
"At moments like this it does you no good to point fingers and to be looking around trying to figure out who you can throw under the bus."
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