Unranked Men Reach Semi's of Tennis Coffee Cup Under-18 professionals Italy's Antonio Comporto and El Salvador's Marcelo Arevalo Friday surprised tennis pundits by reaching the semi-finals of Costa Rica's Coffee Cup by beating two top seeds.

Unseeded players Comporto and Arevalo each eliminated a list of top players on their way to the semi-final and tennis observers are keen to see what they can do next.

The Italian beat American heavyweight Drew Daniel 6-7 (4), 7-5 and 6-1 to face Brazil's Fernando Romboli, the number one seed. Romboli has already defeated much higher rated players: number four seed Gonzalo Escobar and number 14 Nikita Zotov.

Romboli had no difficulty in defeating Slovakia's Eugen Brazdil 6-2 and 6-0, extending his run as the contest's most consistent player.

Meanwhile, Arevalo Thursday defeated Denmark's Ulkrik Thomsen 6-3 and 6-0, and goes on to face 16th seed Holland's Thomas Schoorel on Friday. Schoorel barely raised a sweat to defeat Ecuador's Patricio Alvarado, number 11 seed.

Arevalo's path to the semis includes the win over third seed Romania's Dragos Mirteas. If he proves victorious he will be only the second Central American to hold the trophy, after fellow Salvadorian Miguel Merz.

There were no surprises in the women's competition, with number one seed, the United States's Julia Cohen, swiftly defeating Romania's Irina Begu. She will go one to face Russia's Elena Chernyakova, the number four seed.

The number two seed, Russia's Anastasia Pivovarona, will face the number 14 seed, Israel's Julia Glushko.

In its 43rd edition in 2007, the Cup has attracted 225 players from 44 countries and regions, and is one of the world's most important tournaments for tennis players under-18.