At what tournament did pete sampras begin his lead?
CREATE TABLE table_23408094_14 (tournament_at_which_lead_began VARCHAR, player VARCHAR)
SELECT tournament_at_which_lead_began FROM table_23408094_14 WHERE player = "Pete Sampras"
### Context: CREATE TABLE table_23408094_14 (tournament_at_which_lead_began VARCHAR, player VARCHAR) ### Question: At what tournament did pete sampras begin his lead? ### Answer: SELECT tournament_at_which_lead_began FROM table_23408094_14 WHERE player = "Pete Sampras"