Cardinals Manager Tony La Russa and such stars as Albert Pujols, Chris Carpenter, Lance Berkman and David Freese were perched atop a wagon pulled by a team of Clydesdale horses, the St. Louis Post-Dispatch reported.
The parade started at Union Station, headed down Market Street and ended with a rally at Busch Stadium, where Mayor Francis Slay awarded Freese with the key to the city.
The third baseman was named World Series MVP after hitting .348 with three doubles, a triple and a home run -- an extra-inning, walk-off shot that gave the Cards a dramatic comeback win in Game 6.
City officials were expecting several hundred thousand people to turn out for the parade, although an official count wasn't immediately available, the newspaper said.
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