It didn't end well for the dude. He was facedown and motionless for several minutes before being carted off.
If he only had his protective bubble on during his idiotic attempt to jump on the field.
Cubs personnel are attending to the fan. Appears to be slightly moving. pic.twitter.com/XJj8ZuU8g2— Brett Lyons (@Brett__Lyons) July 8, 2016