user: Question: What is the 1st leg of the UEFA Champions League Compeition in the Skonto Riga Club?
Columns: ['Season', 'Competition', 'Round', 'Club', '1st Leg', '2nd Leg']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1983–84', 'European Cup', '1R', 'Grasshopper', '1–0 (H)', '2–2 (A)']
SQL:

assistant: SELECT "1st Leg" FROM "Table" WHERE "Competition" = 'UEFA Champions League' AND "Club" = 'Skonto Riga';