A potential top contender’s fight has been added to UFC 155 as Erik Koch will battle Ricardo Lamas in a featherweight division contest. Koch is currently undefeated in UFC competition, having defeated both Raphael Assuncao and Jonathan Brookins. Lamas is looking to build on the biggest victory of his career, which was a decision victory over Hatsu Hioki at UFC On FX IV. UFC 155 takes place on December 29th at the MGM Grand Garden Arena in Las Vegas, Nevada with Junior Dos Santos and Cain Velasquez headlining.