Celebrations for Puerto Rico at the World Baseball Classic turned sour when pitcher Edwin Diaz hurt his knee after their victory against the Dominican Republic.

The New York Mets closer – widely considered to be the best in the game – eliminated the favourites for the competition as he struck out Teoscar Hernandez to complete a 5-2 victory.

In the ensuing celebrations, the players were jumping in a huddle before stopping once it became apparent that Diaz was injured.

His brother, Cincinnati Reds reliever Alexis Diaz, was in tears as medics attended to him, helping the 28-year-old from the field.

According to ESPN, the 28-year-old will undergo an MRI on Thursday, with sources fearing "the injury could keep Díaz out for a significant period".

"I didn't see it right away," Puerto Rico manager Yadier Molina said. "I was hugging our coaches in the dugout, and when we looked up, Edwin was on the ground.

"I didn't know. I didn't know how to act, I didn't know what to say. It caught me by surprise. It sucks. When you see a guy that works so hard like Edwin, when you see him on the ground like that, it's just sad."

Center fielder Enrique Hernandez added: "It wasn't pretty much until we got to the infield dirt that we realised something had gone wrong.

"At the moment we didn't know who it was. When we got there, that's when we realised who it was. Obviously, aside from being the best closer in the game right now, and being a huge part of this team, [Diaz] is one of the glue guys in that clubhouse."

The Arizona Diamondbacks and top prospect Corbin Carroll have agreed to an eight-year contract extension, according to multiple reports.

The 22-year-old outfielder signed for a base compensation of $111million, with a team option and escalators that could raise the total value of the deal over $134m.

According to MLB.com, Carroll's compensation is the most ever given to a U.S.-based player with fewer than 100 days of major league service time.

The previous record of $70m had been set by the Atlanta Braves' Michael Harris, who went on to be named the 2022 NL Rookie of the Year.

The deal locks Carroll up for all of his arbitration-eligible seasons, plus at least his first two free agency seasons.

Arizona drafted Carroll in the first round of the 2019 draft, and the left-handed center fielder has remained among the highest-ranked prospects in the organisation ever since.

Carroll made his major league debut last season, batting .260 with an .830 OPS in 115 plate appearances. In 32 games he had 27 hits, 15 for extra bases.

Earlier this offseason, MLB.com ranked the speedy outfielder as the No. 2 prospect in baseball, behind Baltimore Orioles infielder Gunnar Henderson.

The New York Yankees will be without left-handed starter and prized free agent acquisition Carlos Rodon to start the season in yet another blow to the Yankees’ pitching staff before the year has even begun.

Rodon, who received a $162 million contract to join New York this off-season, is suffering from a left forearm strain and will be on the injured list when the Yankees open the 2023 campaign in three weeks.

Rodon underwent an MRI on Wednesday, which revealed an injury similar to one that the two-time All-Star dealt with last season while with the San Francisco Giants.

“The finding was something, but not significant or serious,” Yankees general manager Brian Cashman told reporters on Thursday. “Obviously, trying to pitch through stuff is not a good thing, especially this time of year.

“If this was in-season - pennant race, late in the game - he's still probably up and running. He had this last May with the Giants, and he didn't miss any time with it.”

While Rodon was able to play through the injury last season, he was 1-4 in his five May starts with a 5.67 ERA – easily the worst stretch of his 14-8 campaign.

Rodon reiterated to reporters on Thursday that he could play through the injury if it had occurred at a more crucial time of the season, but the Yankees would not put a timetable on the lefty making his debut in pinstripes.

Cashman said that Rodon will take at least a week recovering on a no-throw program before ramping him up.  

“You just have to prevent looking at the calendar and force-feeding it and speeding the process up because you feel the outside pressure of it's a new organisation, fan base, stuff like that,” Cashman said. “[Rodon] understands that. He's a pro. But like anything else, it's the human nature of, 'I want to get out there and pitch.'”

Cashman also announced that relievers Lou Trivino and Tommy Kahnle would also begin the season on the injured list. The Yankees’ rotation is already missing last year’s mid-season acquisition, Frankie Montas, who underwent shoulder surgery in February.

Domingo German, Clarke Schmidt and Deivi Garcia are among the candidates to open the 2023 season in the Yankees’ starting rotation that will feature Gerrit Cole, Nestor Cortes and Luis Severino.

The Yankees open the season at home against the Giants on March 30.