A potential UFC Heavyweight Title top contenders fight has been added to UFC 156 as Alistair Overeem battles Antonio Silva. Overeem has not competed since a UFC 141 victory over Brock Lesnar, a failed drug test following that fight lead to a one year suspension. Silva will be looking to build on his first UFC victory, which came over Travis Browne by TKO at UFC On FX V. UFC 156 takes place on February 2nd at the Mandalay Bay Events Center in Las Vegas, Nevada with Jose Aldo and Frankie Edgar headlining.