Santiago Giraldo Santiago Giraldo upset second-seeded Tommy Robredo 6-3, 6-4 on Thursday to advance to the quarterfinals of the U.S. Men's Clay Court Championship. Giraldo will face Alejandro Gonzalez on Friday at River Oaks Country Club. Gonzalez advanced when fifth-seeded Feliciano Lopez retired because of severe allergies. Gonzalez led 6-3, 2-0. Read more http://espn.go.com/tennis/story/_/i...-tommy-robredo-us-men-clay-court-championship
