Andy Ruiz Jr. vs. Anthony Joshua: Latest Odds, Expert Predictions

The WBA, WBO and IBF belts are on the line when Anthony Joshua and Andy Ruiz Jr. meet on Saturday in Saudi Arabia for the second time.

The Mexican pulled off one of the greatest upsets in the modern history of the heavyweight division when he stopped Joshua in seven rounds on June 1 at the Madison Square Garden in New York City, handing the Briton his first professional loss.

An 11-1 underdog going into the first fight, the unheralded Mexican hit the canvas in the third round, but recovered to floor Joshua twice in the same frame, before repeating the feat twice in the seventh round.

Ruiz will no longer have the surprise factor on his side on Saturday, but will Joshua have what it takes to regain the belts he lost six months ago?

Here's how experts and fellow boxers expect the rematch to pan out.

Steve Kim—ESPN

Kim believes the rematch will be a vastly different bout from the first fight in June, as the element of surprise is no longer available to either boxer.

"When they fought back in June, Ruiz was thought of as nothing more than a portly late replacement," he wrote. "But as Joshua found out, this was a book that never should have been judged by its cover. Expect to see a more disciplined and focused AJ this time around."

Mike Costello—BBC Sport

The loss to Ruiz was the first of Joshua's professional career and Costello believes a second defeat to the Mexican could deal a potentially devastating blow to the Briton.

"[Joshua] is talking like a man who is needing, I don't want to say to salvage his career as that is too strong, but it's not far short," Costello said. "It is not all over if he is beaten here—it depends how he is beaten—but it would be a long, long way back."

David Haye—Former unified cruiserweight world champion

Haye suggested Joshua's best chance of beating Ruiz is to take the fight to 12 rounds.

"If there is a knockout, I believe it will come from Ruiz," he told the Daily Mirror. "If Joshua stands there throwing combinations with someone who bases his whole style on trading punches and turns it into a slugfest, I believe Ruiz will do something similar to the first fight.

"But if Joshua wins the first six or seven rounds comfortably then Ruiz will be forced to change his game plan and take more risks, in which case Joshua will have a very good chance of stopping Ruiz in rounds 10, 11 or 12."

Andy Ruiz Jr, Anthony Joshua
Promoter Eddie Hearn stands between Mexican-US WBA, IBF, WBO and IBO heavyweight boxing champion Andy Ruiz Jr (L) and Britain's Anthony Joshua (R) as they pose next to each other at a promotional press conference in London on September 6. The "Clash on the Dunes" is scheduled to take place in Diriya, Saudi Arabia on December 7. Daniel Leal-Olivas/AFP/Getty

Kevin Barry—Joseph Parker's trainer

The trainer of former WBO heavyweight world champion Joseph Parker, Barry was among the few who tipped Ruiz to win in June but expects Joshua to fight a different bout on Saturday.

"When he had Ruiz down, all he had to do was take his time but he ran in with the wrong punches and put himself there to be hurt," he told the BBC. "This time we will see more poise. If he uses his skills and controls the pressure, I think Joshua wins the fight."

Deontay Wilder—Reigning WBC heavyweight world champion

Wilder believes Ruiz will "win easily" on Saturday. "I really believe Andy is gonna go in there and do it again," he told Sky Sports.

"When I look at the first fight, as a fighter I see a lot of red flags [over Anthony Joshua's approach] and I think if the same mindset carries on in the second fight, Ruiz is going to win easily."

Sergio Mora—Former WBC light middleweight champion

Mora believes Joshua will have to be smarter than he was in the first fight he is to win the rematch.

"Every champion gets bitter when they lose a fight they're supposed to win," he told Sports Illustrated. "He has to stay intelligent and not bring that bitterness into the ring, he needs to follow a gameplan and a strategy because there's going to be a time in that fight when he's going to get hurt again."

Lates odds

The bookmakers expect Joshua to avenge the defeat he suffered in the first bout against Ruiz.

According to Oddschecker, the Briton is a 12/25 favorite, while Ruiz is a 21/10 outsider and the draw is at 33/1.

Joshua is 12/1 to win between Round 5 and Round 8, while Ruiz is 22/1 to win in Round 7 and 25/1 to force a stoppage in either of the previous two rounds.