what tax year should I claim rental expenses and income?

I have a rental property that was rented out at the end of the year.  The property manager that is now terminated did not send me a 1099.  The manager collected rent in 2019 but it did not actually get dispersed to me until 2020.  Should I claim this rental income for 2019 tax year?  Furthermore, there were some expenses that occurred in 2019 (a repair, management fees)... should I claim those in 2019 or in 2020 when it was actually deducted from my net rent dispersed to me?

Thanks