TSX set for lower start, focus on Greek vote

(Reuters) - Stock futures pointed to a lower opening for Canada's main stock index on Friday as most investors were staying on the sidelines before Greece's referendum on bailout conditions at the weekend. September futures on the S&P TSX index were down 0.11 percent at 7:15 a.m. ET. No major Canadian economic data is due for release on Friday. Canada's main stock index rose on Thursday as market choppiness due to uncertainty in Greece sent investors looking for safety in heal