Table:
text: Grega Žemlja
Singles performances (18–10)
Singles performances (18–10)
Edition Round Date_ Against Surface Opponent Result_ Outcome
2005 Europe/Africa Zone Group II 1R 3-04-2005 Ivory Coast Hard (I) Valentin Sanon 6–4, 6–4, 7–5 Win
2005 Europe/Africa Zone Group II QF 7-15-2005 Latvia Clay Ernests Gulbis 5–7, 6–3, 6–1, 6–4 Win
2005 Europe/Africa Zone Group II SF 9-25-2005 Portugal Clay Rui Machado 3–6, 3–6, 6–2, 4–6 Lose
2006 Europe/Africa Zone Group II 1R 4-07-2006 Algeria Clay Slimane Saoudi 7–5, 6–2 Win
2006 Europe/Africa Zone Group II 1R 4-09-2006 Algeria Clay Lamine Ouahab 3–6, 6–2, 6–4, 3–6, 4–6 Lose
2006 Europe/Africa Zone Group II RPO 7-21-2006 Ireland Grass Kevin Sorensen 6–2, 7–5, 6–1 Win

Question: If the date is 21.7.2006, who was Grega Žemlja's opponent?