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 | Venue | Result | Scorers |
| --- | --- | --- | --- | --- |
| March 31, 1979 | Portland Timbers | H | 3–4 | Gersdorff, Child, Cohen |
| April 14, 1979 | Edmonton Drillers | H | 0–1 |  |
| April 21, 1979 | San Diego Sockers | A | 3–3* | Child (2), Ryan |
| April 28, 1979 | Los Angeles Aztecs | H | 1–2 | Child |
| May 5, 1979 | Vancouver Whitecaps | H | 1–2 | Gersdorff |
| May 9, 1979 | Detroit Express | A | 0–3 |  |
| May 12, 1979 | Seattle Sounders | A | 1–2 | Gersdorff |
| May 19, 1979 | Seattle Sounders | H | 0–1 |  |
| May 26, 1979 | Edmonton Drillers | A | 2–1 | Child, Lawson |
| June 2, 1979 | Memphis Rogues | H | 2–1 | Etterich, Flindt |
| June 6, 1979 | Minnesota Kicks | A | 1–4 | Gersdorff |
| June 9, 1979 | Toronto Blizzard | H | 2–3 | Child, Gersdorff |
| June 13, 1979 | Tampa Bay Rowdies | A | 2–2* | Child, Versen |
| June 16, 1979 | Fort Lauderdale Strikers | A | 1–3 | Armstrong |
| June 20, 1979 | Portland Timbers | A | 2–1 | Etterich, Ryan |
| June 23, 1979 | Chicago Sting | H | 4–2 | Etterich, Bick, Webers, Gersdorff |
| June 27, 1979 | New England Tea Men | H | 0–1 |  |
| June 30, 1979 | Philadelphia Fury | A | 1–2 | Wood |
| July 4, 1979 | Houston Hurricane | A | 0–4 |  |
| July 7, 1979 | Fort Lauderdale Strikers | H | 1–2 | Flindt |
| July 11, 1979 | Philadelphia Fury | H | 4–4* | Armstrong, Etterich, Gersdorff, Wood |
| July 14, 1979 | Los Angeles Aztecs | A | 0–0* |  |
| July 18, 1979 | Houston Hurricane | H | 1–2 | Gersdorff |
| July 21, 1979 | Tulsa Roughnecks | H | 3–2 | Armstrong (2), Wood |
| July 25, 1979 | Chicago Sting | A | 3–2 | Gersdorff (2), Child |
| July 29, 1979 | New York Cosmos | A | 0–5 |  |
| August 1, 1979 | California Surf | H | 0–2 |  |
| August 4, 1979 | California Surf | A | 1–4 | Wood |
| August 8, 1979 | Vancouver Whitecaps | A | 0–1 |  |
| August 11, 1979 | San Diego Sockers | H | 0–6 |  |
Question:
how many different players scored for the san jose earthquakes during their 1979 home opener against the timbers?
Answer:
3