Sinkhole appears in soccer field above Illinois mine: ‘Out of a movie’ The GuardianSoccer field damaged in Alton collapse KSDK.comSinkhole at Illinois Park Captured on Video Swallowing Lamp Post PEOPLEMassive sinkhole swallows Illinois soccer field after mine collapses Yahoo! VoicesWatch: Sinkhole swallows Illinois football pitch BBC.com