On Thursday at the Olympic Tennis Centre, Serena lost 3-6 6-4 6-3 to Russia's Elena Dementieva. Her dreams for a first Olympic singles gold went up in smoke after Russian number five seed Elena Dementieva enters into the quarter-finals.As told to reporters, Dementieva said "This is the biggest tournament for me this year." Dementieva, who won the Olympic singles silver medal in 2000, will play Vera Zvonareva for a place in the final after her No.9 seeded fellow citizen beat unseeded Austria's Sybille Bammer 3-6 6-3 6-3.
