SAO PAULO, Sept 21 (Reuters) - Brazilian President Luiz Inacio Lula da Silva and Senator Flavio Bolsonaro remain statistically tied in simulated runoffs ahead of next month's election, two polls showed on Monday. Luiz Inacio Lula da Silva is running in October's election for a fourth non-consecutive term as Brazil's president. Key points and original sources are listed below.

• SAO PAULO, Sept 21 (Reuters) - Brazilian President Luiz Inacio Lula da Silva and Senator Flavio Bolsonaro remain statistically tied in simulated runoffs ahead of next month's election, two polls showed on Monday.S1

• Luiz Inacio Lula da Silva is running in October's election for a fourth non-consecutive term as Brazil's president.S2