UFC star Conor McGregor lights up Twitter with historic one-liner callout of former press conference foe 

Conor McGregor is well known for his skills on the microphone and has accumulated numerous catchphrases over his career. But arguably his most iconic one-liner came at the UFC 205 press conference in 2016, where he brutally dismissed Jeremy Stephens by asking, "Who the f**k is that guy?"

Watch the video below:

Jeremy Stephens fought MMA legend Jose Aldo at Jorge Masvidal's Gamebred Promotions event - Gamebred Boxing 4. The bout ended as a majority draw, after the former MMA fighters went toe-to-toe for six rounds.

McGregor called 'Lil Heathen' out following the event and sent Twitter alight:

"Me and who the f**k is that guy should box."

See the post below:

Fans shared priceless reactions to McGregor's reference to the infamous one-liner and the possibility of the pair squaring off in the boxing ring.

@BelgianMMAGod's reply to 'The Notorious' hilariously referenced Stephens' "hardest hitter" response to McGregor at the UFC 205 press conference:

"Hardest hitter in 145 [pounds]... you sure you're up for that?"

@Jidion6 said:

"Bro still don't know who he is"

@MostlyMMA dove into the archives and shared Jeremy Stephens' iconic tweet in reply to Conor McGregor.

@leonardodefinci believes that McGregor 'owes' Stephens a fight after taking his soul in 2016:

"You owe it to him, give him his soul back!!"

UFC lightweight Michael Johnson appears eager to set up a boxing match against either McGregor or Stephens, as he said this:

"Best MMA boxer in the division right here hands down. I’ll clean all these guys up with these hands!"

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Conor McGregor responds to former UFC rival Jose Aldo

Jose Aldo and Conor McGregor shared a heated rivalry in 2015 as 'The Notorious' pursued the Brazilian's featherweight title. Their beef culminated in a championship fight at UFC 194, where McGregor shocked the world by knocking out the Brazilian in 13 seconds.

Following Aldo's boxing match with Jeremy Stephens last night, 'The Notorious' tweeted that he and 'Junior' should compete in the squared circle. Aldo was informed of the Irishman's comments at the post-event press conference, and he did not have anything kind to say about McGregor.

Conor McGregor has now responded to Jose Aldo and said:

"Well ok then ahaha whatever lad I was only trying to be nice. Who pissed in your açaí?"

See the tweet below: