T.J. Dillashaw still sees championship potential in Aaron Pico, but urges him to change his offensive approach.

Before Chimaev won the title by unanimous decision, the main card featured back-to-back knockouts by spinning elbow. Lerone ...

Aaron Pico sustained a brutal knockout loss in his UFC debut and a former multi-time bantamweight champion in the promotion ...

TJ Dillashaw recently weighed in on Aaron Pico's knockout loss to Lerone Murphy at UFC 319 last Saturday. Dillashaw expressed concern ...

Dillashaw was also fined $10,000 for the positive drug test. Dillashaw got in front of that news by announcing his doping violation over Instagram and then relinquishing his bantamweight title.

Dillashaw insists it wasn’t – that he only turned to the banned substance EPO in desperation as he looked to trim down to 125 pounds and unseat then-flyweight champ Henry Cejudo.

TJ Dillashaw celebrates his UFC bantamweight title bout win over Cody Garbrandt during UFC 227 at Staples Center on August 4, 2018 in Los Angeles, United States.

Dillashaw’s agent, Tiki Ghosn, later cofirmed the fighter’s retirement to ESPN. Dillashaw is coming off a loss to Aljamain Sterling in a bantamweight title bout at UFC 280 on Oct. 22.

The two trained on and off together for the next two years, Dillashaw said, and he was a big proponent of Sandhagen at the time. “I liked Cory,” Dillashaw, 35, recalls of their time together.

Dillashaw, 36, told ESPN on Wednesday he will undergo surgery on his left shoulder, which was dislocated in the first round of a title fight against Aljamain Sterling last weekend at UFC 280.

TJ Dillashaw (10-2) shocked the world at UFC 173 on Saturday night, knocking out Renan Barao in the final round of their bantamweight title fight inside MGM Grand Garden Arena.

TJ Dillashaw (10-2) shocked the world at UFC 173 on Saturday night, knocking out Renan Barao in the final round of their bantamweight title fight inside MGM Grand Garden Arena.