UFC on Fox 6 is live tonight from Chicago, Ill.
The stacked card is headlined by Demetrious Johnson defending his flyweight title for the first time against The Ultimate Fighter 14 winner John Dodson.
Also featured on the care is Quinton "Rampage" Jackson in his last UFC fight against rising star Glover Teixeira.
Lightweights Anthony Pettis and Donald Cerrone will also go at it in a match with strong title implications.
Here is what to watch for in tonight's fights.