Yardbarker
Seattle Mariners News / Minor League Baseball on SI / April 3
Veteran Infielder Leo Rivas, Left-Handed Pitcher Jhonathan Diaz Optioned to Triple-A

Veteran Infielder Leo Rivas, Left-Handed Pitcher Jhonathan Diaz Optioned to Triple-A

The Seattle Mariners Triple-A Tacoma Rainiers will have an experienced left-handed pitcher and infielder on the team after a recent round of roster moves.

Seattle Mariners News / MLB Trade Rumors / April 1
Mariners select left-hander's contract

Mariners add multi-inning bullpen option by selecting left-hander's contract

The club already had an open 40-man roster spot, so no corresponding move was necessary there.

'Fighter' Casey Mize, Tigers face Logan Gilbert, Mariners
Early outburst propels Tigers to win over Mariners
One storyline to follow for every MLB team in 2025
The '2024 MLB strikeout leaders' quiz
New York Mets News / Yardbarker Quizzes
The 'Most 40 home run seasons in MLB history' quiz

The 'Most 40 home run seasons in MLB history' quiz

How many of the 50 MLB players with three or more 40 home run seasons can you name in six minutes?

The 'Home Run Derby champion' quiz
The 'MLB home run leaders from 2024' quiz
The '200 or more strikeouts in 2019' quiz
Seattle Mariners News / Seattle Mariners on SI / February 20
Left-Handed Reliever Jhonathan Diaz Will Start First Seattle Mariners Spring Game

Left-Handed Reliever Jhonathan Diaz Will Start First Seattle Mariners Spring Game

Baseball is officially back. The Seattle Mariners and San Diego Padres will play their respective first games of spring training against each other at 12:10 p.m.

Seattle Mariners News / Seattle Mariners on SI / February 12
Left-Handed Reliever Jhonathan Diaz Returns to Seattle Mariners on Minor League Deal

Left-Handed Reliever Jhonathan Diaz Returns to Seattle Mariners on Minor League Deal

Spring training has officially begun for the Seattle Mariners. Pitchers and catcher reported to the Peoria Sports Complex in Peoria, Ariz., on Feb. 12 and a full squad workout will take place less than a week later on Feb.

Seattle Mariners News / Seattle Mariners on SI / February 8
Recently Jettisoned Seattle Mariners Pitcher Elects Free Agency

Recently Jettisoned Seattle Mariners Pitcher Elects Free Agency

After being designated for assignment earlier this week, veteran left-hander Jhonathan Diaz has elected free agency. The Mariners announced the move on social media: Roster moves: OF Cade Marlowe cleared waivers and was outrighted to Triple-A Tacoma.

Seattle Mariners News / MLB Trade Rumors / February 8
Jhonathan Diaz elects free agency

Jhonathan Diaz elects free agency

The Mariners announced a pair of DFA resolutions on Friday.

Mariners acquire Casey Legumina, designate Jhonathan Diaz
'We have a good team': Mariners president discusses quiet offseason
Which MLB pitchers have thrown more than one no-hitter?
The '2001 MLB All-Star Game starters' quiz
Seattle Mariners News / Seattle Mariners on SI / February 4
Seattle Mariners Remove Valuable Pitcher From 40-Man Roster

Seattle Mariners Remove Valuable Pitcher From 40-Man Roster

The Seattle Mariners made a somewhat surprising move on Monday when they designated pitcher Jhonathan Diaz for assignment. They did it as part after acquiring another pitcher in a trade with the Cincinnati Reds.

MLB News / MLB Trade Rumors / February 3
Mariners acquire Casey Legumina, designate Jhonathan Diaz

Mariners acquire Casey Legumina, designate Jhonathan Diaz

The Mariners announced that they have acquired right-hander Casey Legumina from the Reds.

Seattle Mariners News / Seattle Mariners on SI / September 1
Seattle Mariners Bring up Two Pitchers as Roster Expands From 26 to 28

Seattle Mariners Bring up Two Pitchers as Roster Expands From 26 to 28

The MLB rosters have expanded from 26 active players to 28 and many teams still in playoff contention are looking to bolster their squad with the final month of the season underway.

Seattle Mariners News / Seattle Mariners on SI / June 30
Seattle Mariners Announce Very Interesting Move Ahead of Sunday Series Finale

Seattle Mariners Announce Very Interesting Move Ahead of Sunday Series Finale

In a surprising move, the Seattle Mariners have announced that starting pitcher Luis Castillo will get the ball in Sunday's series finale against the Minnesota Twins at T-Mobile Park.

Seattle Mariners News / Seattle Mariners on SI / June 28
All Signs Point to Seattle Mariners Utilizing Surprise Fill-In For Injured Bryan Woo

All Signs Point to Seattle Mariners Utilizing Surprise Fill-In For Injured Bryan Woo

With Bryan Woo on the injured list with a hamstring strain, all signs are pointing to the Seattle Mariners utilizing Jhonathan Diaz to cover his start this weekend against the Minnesota Twins.

Seattle Mariners News / Seattle Mariners on SI / June 12
Mariners Make Multiple Roster Moves on Wednesday, Here's What They Could Mean

Mariners Make Multiple Roster Moves on Wednesday, Here's What They Could Mean

After starting in place of the injured Bryan Woo on Tuesday night and delivering 5.1 solid innings, Seattle Mariners' lefty Jhonathan Diaz has been optioned to Triple-A in a series of roster moves on Wednesday.

Customize Your Newsletter

Yardbarker +

Get the latest news and rumors, customized to your favorite sports and teams. Emailed daily. Always free!

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Popular Quizzes

Can you name every NBA player to have multiple seasons with 200 or more three-pointers?

Can you name the players with the most home runs in MLB postseason history?

Can you name the NBA players with the highest three-point percentage in the playoffs?

Can you name the goalies to lead the NHL in saves each season since 1994-95?

Can you name the last quarterback each NFL team selected in the first round of the NFL Draft?

Can you name the first running back drafted since 2000?

Today's Latest News

Four stars of the night in MLB: Pitchers dominate

No Jayson Tatum, no problem: Celtics down Magic in Game 2

Avalanche's Gabriel Landeskog makes his long-awaited return to lineup

Cubs' Matt Mervis trade is already looking very bad

Watch: A's top prospect collects first MLB hit and RBI

Watch: Warriors' Jimmy Butler injured after hard fall vs. Rockets

Lions sign Kerby Joseph to record-setting extension

Elina Svitolina, husband Gael Monfils subject to doping test hours after winning Rouen Open