Sunday's UFC 273 card, which takes place in Jacksonville, Florida, offers up two title fights and a very intriguing welterweight contest.
Featherweight champion Alexander Volkanovski closes out the night when he puts his title up for grabs against Chan Sung Jung.
The co-main sees bantamweight champion Aljamain Sterling face interim champion Petr Yan, while No.2 Gilbert Burns faces Khamzat Chimaev in the welterweight division.
What's the significance of the main event?
Volkanovski is fast becoming a great of the sport and he's running out of challenges after dominating the featherweight division.
He is unbeaten in his last 20 contests and will be making the third defence of his featherweight strap this weekend.
A spot in the UFC Hall of Fame is almost certainly guaranteed but don't expect him to ease off any time soon.
Jung, better known as "The Korean Zombie", is ranked number four in the division after beating Dan Ige in June 2021.
The South Korean competed for the title at UFC 163 in August 2013 but he suffered a fourth round TKO loss to Jose Aldo in Rio de Janeiro.
Sunday's co-main event is a unification bout between champion Sterling and interim belt holder Yan.
Sterling won the belt from Yan in controversial circumstances at UFC 259 after the latter was disqualified for an illegal knee to the head in round four.
The American hasn't fought since that night due to neck issues, while Yan claimed the interim title when beating Cory Sandhagen at UFC 267 in October 2021.
What are their records?
Alexander Volkanovski - 24 fights, 23 wins (11 KOs), 1 defeat.
Chan Sung Jung - 23 fights, 17 wins (6 KOs), 6 defeats.
Aljamain Sterling - 23 fights, 20 wins (2 KOs), 3 defeats.
Petr Yan - 18 fights, 16 wins (7 KOs), 2 defeats.
Where are the fights taking place?
Sunday's event takes place at the VyStar Veterans Memorial Arena in Jacksonville, Florida.
What time does the card start?
The prelims get underway at 01:00 GMT on Sunday, 9th April and the main card is scheduled to begin at 03:00 GMT.
Who is fighting on the undercard?
Aljamain Sterling vs Petr Yan
Gilbert Burns vs Khamzat Chimaev
Mackenzie Dern vs Tecia Torres
Alexey Oleynik vs Jared Vanderaa
What are the odds?
Volkanovski is a heavy 1/7 favourite to come out on top against 5/1 Sung. Interim bantamweight champion Yan can be backed at 2/9 to defeat champion Sterling, who is priced at 7/2.
Alexander one of the greats
Volkanovski made his UFC debut in 2016 after enjoying a ten-fight winning streak and he's continued to impress with the company.
After picking up another six successive victories, Volkanovski proved he was capable of mixing it with the best when beating Jose Aldo at UFC 237.
That triumph saw the Australian earn a shot at featherweight champion Max Holloway and, once again, his quality shone through to secure a unanimous decision win and UFC gold.
He sealed another win over Holloway when making his first defence before defeating Brian Ortega last time out.
It's difficult to see Jung causing an upset against the champion, especially when considering he lost to Ortega in 2020.
But he is a tough competitor and there's a feeling he could stick around for the full five rounds in Florida.
Each of Volkanovski's last four wins have come via decision and nine of his 23 career victories have gone the full distance.
Volkanovski is 8/11 to pick up another triumph courtesy of decision, while it's 8/15 for the fight to go the distance.
Yan to reclaim gold
The first meeting between Yan and Sterling was stopped in round four due to an illegal knee landed by the former.
But Yan, who was the champion going into that contest, was heading towards victory with two of the three judges giving him a 29-28 advantage.
The pair were always destined to meet again to settle the score but those plans have fallen through on two occasions over the past 13 months.
A lingering neck injury for Sterling has been the issue and, although he's been given the all-clear, a lack of activity in the meantime could be a major issue.
Yan dominated in all areas last time as Sterling managed just one successful takedown from 17 attempts, while the Russian achieved seven from seven.
He was also finding a regular home with his significant strikes and was really beginning to control proceedings before it was ended prematurely.
The interim champion should have Sterling's number once again and there's value in backing Yan to win by KO, TKO, DQ or Submission at 7/5.
