Houston Astros Catcher Yainer Diaz Commits to Dominican Republic for 2026 World Baseball Classic

Yainer Diaz, the Houston Astros catcher from Azua, Dominican Republic, confirmed to Diario Libre on March 6 that he intends to represent his home country in the 2026 World Baseball Classic. As he opens the 2025 MLB season in a platoon role behind the plate, Diaz is this week’s World Baseball Classic spotlight player at World Baseball Network.

The 26-year-old made his MLB debut with the Astros on September 2, 2022, against the Los Angeles Angels, and is now in his fourth season with Houston. Cleveland originally signed him in 2016 and came to the Astros in a 2021 trade that sent outfielder Myles Straw to the Guardians. Listed at 5-foot-11 and 195 pounds, Diaz has also seen time at first base, designated hitter, and catching.

Diaz and Victor Caratini have been sharing catching duties for the Astros to begin the 2025 season under second-year manager Joe Espada.

During the 2025 spring training, Diaz appeared in 15 games and batted .195/.233/.341 over 43 plate appearances, recording eight hits, two home runs, four RBI, two walks, and nine strikeouts.

Diaz has struggled at the plate to start the regular season, hitting .061/.139/.061 over nine games with two hits, one RBI, three walks, and 10 strikeouts in 36 plate appearances.

Defensively, Diaz has started eight games at catcher through 72 innings, handling 95 chances with 92 putouts, three assists, and no errors.

In 2024, Diaz played in 148 games for Houston, batting .299 with 175 hits, 29 doubles, three triples, 16 home runs, 84 RBI, 24 walks, 107 strikeouts, and a .766 OPS in 619 plate appearances.

Diaz has appeared in three postseason series for Houston, including the 2023 ALCS and the 2024 Wild Card Series. He went 3-for-21 overall with one RBI and one walk in nine games.

Over five MLB seasons, Diaz has played in 267 games for Houston, compiling a 6.0 WAR with a .283 batting average, 278 hits, 52 doubles, three triples, 39 home runs, 146 RBI, 39 walks, 193 strikeouts, and a .773 OPS in 1,041 plate appearances.

The Dominican Republic will evaluate Diaz throughout the 2025 MLB season as they consider players for the 2026 World Baseball Classic, with Albert Pujols managing and Nelson Cruz serving as general manager.

Under the leadership of President Juan Nunez, the Federacion Dominicana de Beisbol is expected to evaluate offensive options for the 2026 WBC throughout the 2025 season. Players on their radar include Ketel Marte, Fernando Tatis Jr., Juan Soto, Geraldo Perdomo, Mark Vientos, Vladimir Guerrero Jr., Jasson Dominguez, Rafael Devers, Jeremy Pena, Manny Machado, Elly De La Cruz, Willy Adames, Julio Rodriguez, Jose Ramirez, Austin Wells, Gary Sanchez, and, of course, Yainer Diaz.

If Diaz can rediscover the form that helped him bat .299 last season, he’ll not only reclaim his role as Houston’s primary catcher but could lock in a key spot on one of the deepest WBC rosters in the tournament.

2026 World Baseball Classic Information 

Here are your finalized pools and schedule for the 2026 #WorldBaseballClassic.

The Championship Game will be played March 17, 2026 at loanDepot Park in Miami.

Full ticketing information for the 2026 tournament is available at https://t.co/h4Fi0dLx07. pic.twitter.com/t8q8Nopf4k

— World Baseball Classic (@WBCBaseball) April 9, 2025

The Dominican Republic will play against Nicaragua, Venezuela, Israel, and the Netherlands in Miami at loanDepot Park from March 6-11. 

The United States, Italy, Mexico, Great Britain, and Brazil will compete in Pool B at Daikin Park in Houston, Texas, from March 6 to 11. 

Puerto Rico, Cuba, Canada, Panama, and Colombia will compete in San Juan, Puerto Rico, at Hiram Bithorn Stadium from March 6-11 in Pool A. 

Japan, Australia, South Korea, Czech Republic, and Chinese Taipei will compete at the Tokyo Dome from March 5-10 in Pool C. 

The Quarterfinals of the 2026 WBC will feature the Pool A runner-up facing the Pool B winner on March 13, while the Pool B runner-up will face the Pool A winner on March 14 at Daikin Park.

The other side of the Quarterfinals will be on March 13, with the Pool C runner-up playing the Pool D winner and the Pool D runner-up. 

The schedule for the 2026 @WBCBaseball is here! ???? pic.twitter.com/B5MvUIrZK5

— MLB Network (@MLBNetwork) April 9, 2025

WBSC Rankings Outline

Japan is ranked at No. 1 in the World Baseball Rankings and will play in their sixth WBC. Chinese Taipei hails at No. 2 and will play in their sixth event. Venezuela at No. 3 and will appear for the sixth time at the WBC. Mexico is at No. 4 and will play in their sixth WBC. The United States is at No. 5 and will appear for the sixth time in the WBC. South Korea is labeled at No. 6 and will play in their sixth WBC. 

The Netherlands at No. 7 will play in the WBC for the sixth time. Panama at No. 8 will play at the event for the fourth time. Puerto Rico crawling in at No. 9 will appear for the sixth time. Cuba is at No. 10 and will appear in the sixth WBC. The Dominican Republic at No. 11 will play in their sixth event. Australia pipelines at No. 12 and will play for the sixth time at the WBC. 

Colombia at No. 13 and will appear in their third WBC. Italy is at No. 14 and will play in their sixth event. The Czech Republic, at No. 15, will appear in their second WBC. Nicaragua is ranked at No. 16 and will appear in the WBC for the second time. 

Great Britain at No. 18 will play for the second time at the WBC. Israel is ranked at No. 19 and will play in their third WBC. Canada is at No. 22 and will play in their sixth event. Brazil is ranked at No. 23 and will play in their second WBC. 

In the 2023 WBC, Nicaragua, Great Britain, and the Czech Republic played in their first event. Israel and Colombia have played in three consecutive WBC events in 2017. Brazil is appearing in the WBC for the first time since 2013. Panama played in the WBC in 2006, 2009, and 2023, before 2026.

China will not participate in the WBC for the first time since they did not qualify in the second qualifier in Tucson, Ariz., while going 0-3. They have been in the WBC since 2006, in the event’s first year. 

The teams participating in the 2026 WBC and being part of the WBSC Americas sector are the United States, Canada, Mexico, Venezuela, Colombia, Panama, Puerto Rico, Cuba, Nicaragua, Brazil, and the Dominican Republic. In the WBSC Europe sector, Italy, Israel, Great Britain, the Czech Republic, and the Netherlands are participating in the 2026 event.

Japan, Chinese Taipei, and South Korea are in the WBSC Asia sector, and Australia is in the WBSC Oceania sector. 

The remaining listed countries have played in the WBC since its first year in 2006. 

The WBC in 2023 was scheduled for 2021 but was rescheduled due to the COVID-19 Pandemic, which resulted in the event in 2026 being rescheduled from 2025. 

(AP Photo/Lindsey Wasson)