Complex sentence: The city of Miami Gardens was one of the two major contenders to host WrestleMania XXVII along with Atlanta; in February 2010, Atlanta was awarded the right to host the event.
Split into simpler sentences: The city of Miami Gardens was one of the two major contenders to host WrestleMania XXVII along with Atlanta. Ultimately, in February 2010, Atlanta was awarded the right to host the event.