Grudge match: Nate Diaz and Conor McGregor began a fight at UFC 196 that hasn't ended

Nate Diaz, right, punches Conor McGregor during their welterweight mixed martial arts bout at UFC 202 on Saturday, Aug. 20, 2016, in Las Vegas. McGregor won by split decision. (AP Photo/Isaac Brekken)

LAS VEGAS, NV - AUGUST 20: Conor McGregor (L) and Nate Diaz battle during their welterweight rematch at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 20: Conor McGregor waits for the start of his welterweight rematch against Nate Diaz at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. McGregor won by majority decision. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 20: Conor McGregor (L) kicks Nate Diaz during their welterweight rematch at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 20: Conor McGregor (R) takes a punch from Nate Diaz during their welterweight rematch at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. McGregor won by majority decision. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 20: Conor McGregor (L) and Nate Diaz trade blows during their welterweight rematch at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 20: Nate Diaz takes a punch from Conor McGregor during their welterweight rematch at the UFC 202 event at T-Mobile Arena on August 20, 2016 in Las Vegas, Nevada. (Photo by Steve Marcus/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 19: UFC featherweight champion Conor McGregor poses on the scale during his weigh-in for UFC 202 at MGM Grand Conference Center on August 19, 2016 in Las Vegas, Nevada. McGregor will meet Nate Diaz in a welterweight rematch on August 20, 2016, at T-Mobile Arena in Las Vegas. (Photo by Ethan Miller/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 19: UFC President Dana White (C) separates mixed martial artist Nate Diaz (L) and UFC featherweight champion Conor McGregor (R) as they face off during their weigh-in for UFC 202 at MGM Grand Conference Center on August 19, 2016 in Las Vegas, Nevada. The fighters will meet in a welterweight rematch on August 20, 2016, at T-Mobile Arena in Las Vegas. (Photo by Ethan Miller/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 19: Mixed martial artist Nate Diaz poses on the scale during his weigh-in for UFC 202 at MGM Grand Conference Center on August 19, 2016 in Las Vegas, Nevada. McGregor will meet UFC featherweight champion Conor McGregor in a welterweight rematch on August 20, 2016, at T-Mobile Arena in Las Vegas. (Photo by Ethan Miller/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - AUGUST 19: UFC President Dana White (C) separates mixed martial artist Nate Diaz (L) and UFC featherweight champion Conor McGregor (R) as they face off during their weigh-in for UFC 202 at MGM Grand Conference Center on August 19, 2016 in Las Vegas, Nevada. The fighters will meet in a welterweight rematch on August 20, 2016, at T-Mobile Arena in Las Vegas. (Photo by Ethan Miller/Getty Images) (2016 Getty Images)

LAS VEGAS, NV - MARCH 5: Nate Diaz (R) slaps Conor McGregor during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Conor McGregor (R) punches Nate Diaz during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Nate Diaz punches Conor McGregor during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Conor McGregor exits the Octagon after his fight against Nate Diaz in their welterweight bout during the UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Nate Diaz celebrates after defeating Conor McGregor during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Nate Diaz punches Conor McGregor during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Conor McGregor (L) kicks Nate Diaz during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Nate Diaz applies a choke hold to win by submission against Conor McGregor during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)

LAS VEGAS, NV - MARCH 5: Conor McGregor (L) punches Nate Diaz during UFC 196 at the MGM Grand Garden Arena on March 5, 2016 in Las Vegas, Nevada. (Photo by Rey Del Rio/Getty Images) (2016 Rey Del Rio)