Republican presidential candidate Donald Trump is expected to be in St. Louis on Friday.
He will be at the Peabody Opera House at noon on Friday, according to his campaign web site.
Doors will open at 9 a.m. at 1400 Market St. in St. Louis. Tickets to the event are free.
Last week, Democratic presidential candidate Bernie Sanders held a rally at Southern Illinois University Edwardsville, which had an estimated 4,700 attendees.
Voters in Missouri and Illinois will head to the polls for the primaries on March 15.