Do not adjust your monitor: That's two Marlins sliding into third base at once

Is this an optical illusion, or just the weirdest play from Wednesday's Marlins-Nationals game? In the top of the sixth, Logan Morrison found himself retreating to third base -- just as Donovan Solano rounded second to join him. Sharing is caring:

Ian Desmond tagged out Morrison. Solano was ruled safe and managed to score in the next at-bat.