The Cardinals played a prank on pitcher Adam Wainwright in honor of April Fools' Day. Following the second inning of the team's game against the Nationals, public address announcer John Frost read a fake script proclaiming that a fan won a car. Lance Berkman drove a 2009 Chevrolet Silverado onto the field from the left-field fence -- just as a local dealership had done during an advertising spot before the start of the previous inning. Meanwhile, Matt Griffin -- the uncle of third baseman David Freese -- kept the gag going in the stands. Holding a ticket to the "winning" seat just announced over the stadium speakers, Griffin jumped around wildly as though he'd won the car. He grabbed his son, ran down onto the field and climbed into the bed of the pickup. "Hilarious," Wainwright said of the practical joke. "Those are the kinds of things that keep baseball pretty fun -- besides the fact that baseball is already pretty fun."