At State Farm Center, University of Illinois ticket office officials were bracing for the demand of Garth Brooks tickets that went on sale this morning. The 11th hour announcement that a second show would be added next month, did nothing to slow the demand. The ticket office shut down the sale of tickets to shows April 28th and 29th because the system was not able to handle the sale due to high demand. Those who were able to purchase tickets will be able to keep them. Ticket office officials will announce soon when sales will resume.