The Diamondbacks say the Chase Field roof has a pulley system issue, which ABC15 first reported last year - preventing it from being opened or closed while fans are in the building. “We don’t think its a risk of danger to our fans but it’s just safer to do it that way,” said Derrick Hall, Diamondbacks President and CEO. The team is planning to repair that pully system later this year, but that won’t fix a leaky roof, which dropped rain on fans at the World Baseball Classic on Wednesday.