Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Opponent | Score | Loss | Save |
| --- | --- | --- | --- | --- |
| May 1 | Royals | 6–5 | Grimsley (1–2) | Lyon (2) |
| May 2 | Twins | 11–7 | Mendoza (1–1) | &#124;&#124;31,317&#124;&#124;19–10 |
| May 3 | Twins | 9–1 | Fiore (1–1) | &#124;&#124;33,061&#124;&#124;20–10 |
| May 4 | Twins | 9–4 | Timlin (3–1) | &#124;&#124;32,887&#124;&#124;20–11 |
| May 5 | @ Royals | 7–6 | Lyon (1–1) | &#124;&#124;21,232&#124;&#124;20–12 |
| May 6 | @ Royals | 7–3 | Affeldt (2–1) | &#124;&#124;15,848&#124;&#124;21–12 |
| May 7 | @ Royals | 9–6 | Lopez (4–1) | Lyon (3) |
| May 9 | @ Twins | 5–0 | Martínez (3–2) | &#124;&#124;28,436&#124;&#124;22–13 |
| May 10 | @ Twins | 6–5 | Rincón (1–1) | Lyon (4) |
| May 11 | @ Twins | 9–8 | Lowe (3–3) | Guardado (8) |
| May 13 | Rangers | 5–4 | Cordero (1–4) | Lyon (5) |
| May 14 | Rangers | 7–1 | Benoit (1–1) | &#124;&#124;32,485&#124;&#124;25–14 |
| May 15 | Rangers | 12–3 | Benes (0–2) | &#124;&#124;33,801&#124;&#124;26–14 |
| May 16 | Angels | 6–5 | Embree (2–1) | Percival (6) |
| May 17 | Angels | 6–2 | Timlin (3–2) | Percival (7) |
| May 18 | Angels | 5–3 | Lackey (2–4) | Person (1) |
| May 19 | Yankees | 7–3 | Fossum (4–2) | &#124;&#124;35,099&#124;&#124;27–17 |
| May 20 | Yankees | 10–7 | Contreras (1–1) | Lyon (6) |
| May 21 | Yankees | 4–2 | Wakefield (4–2) | Rivera (4) |
| May 23 | Indians | 9–2 | Rodríguez (2–5) | &#124;&#124;32,673&#124;&#124;29–18 |
| May 24 | Indians | 12–3 | Anderson (2–5) | &#124;&#124;32,643&#124;&#124;30–18 |
| May 25 | Indians | 6–4 | Fossum (4–3) | Báez (9) |
| May 26 | @ Yankees | 8–4 | Clemens (6–3) | &#124;&#124;55,093&#124;&#124;31–19 |
| May 27 | @ Yankees | 11–3 | Chen (0–1) | &#124;&#124;44,769&#124;&#124;31–20 |
| May 28 | @ Yankees | 6–5 | Lyon (1–2) | &#124;&#124;44,617&#124;&#124;31–21 |
| May 30 | @ Blue Jays | 13–2 | Burkett (3–3) | &#124;&#124;21,381&#124;&#124;31–22 |
| May 31 | @ Blue Jays | 10–7 | Fossum (4–4) | Politte (9) |
Question:
Who is the opponent on May 7?
Answer:
@ Royals