Ruiz was diagnosed with a left oblique strain following his exit from Friday's Grapefruit League game against the Nationals, Stephen Strom of Marlins Radio Network reports.

EDGE Analysis

The initial diagnosis for Ruiz was left side tightness, but further tests revealed a more significant injury. Per Christina De Nicola of MLB.com, Ruiz will undergo further tests to determine the severity of the strain and whether he will need to open the regular season on the injured list.

Ruiz was removed from Friday's Grapefruit League game against the Nationals due to left side tightness, Christina De Nicola of MLB.com reports.

EDGE Analysis

Ruiz suffered the injury after taking a swing in the third inning and needed assistance making it into the dugout. The speedy outfielder owns just a .446 OPS this spring through 41 plate appearances and already had slim odds of breaking camp with the big club before getting hurt.

Ruiz went 0-for-2 with two stolen bases in Saturday's Grapefruit League game against the Cardinals.

EDGE Analysis

Getting the start in center field and batting third, the 27-year-old was hit by a Darlin Saladin sinker in the third inning and promptly swiped second and third base before getting stranded. Ruiz's speed has never been in question, just the skills to support it, so he'll need to do more in camp to justify winning a spot on the Marlins' 26-man roster. If Kyle Stowers' hamstring injury lingers into the regular season, however, it could open up a spot for Ruiz to begin the campaign.

The Marlins acquired Ruiz from the Dodgers on Monday in exchange for Adriano Marrero, Francys Romero of BeisbolFR.com reports.

EDGE Analysis

Ruiz got into 19 games with the Dodgers in 2025, going 4-for-21 with one home run and four stolen bases. The 26-year-old led the American League with 67 steals in 2023, but he's managed just a .241/.296/.343 batting line over parts of four major-league seasons and is regarded as a poor defensive outfielder. Ruiz has a better chance to make the Marlins' Opening Day roster than he would have the Dodgers', but he does have minor-league options remaining.

Ruiz was optioned to Triple-A Oklahoma City on Thursday.

EDGE Analysis

Ruiz has seen his playing time completely disappear across the last week, failing to draw a start in seven consecutive games. He has 23 total plate appearances at the majors this season, hitting .190/.261/.333.

Ruiz went 1-for-2 with a solo home run in Sunday's 6-5 loss to the Brewers.

EDGE Analysis

The 26-year-old drew the start in left field and slugged his first long ball since April 17, 2024, when with the Athletics, with a 413-foot blast off Milwaukee starter Jose Quintana in the fifth. Ruiz was promoted from Triple-A Oklahoma City on July 3 after slashing .292/.394/.458 with eight homers and 38 stolen bases across 300 plate appearances. The Los Angeles outfielder has been used strictly in a short-side platoon role in the big leagues, posting a .250 (4-for-16) average with six strikeouts in 12 games since his promotion.

Ruiz was recalled by the Dodgers on Thursday.

EDGE Analysis

Ruiz is being called up to replace Max Muncy (knee) on the active roster, though he provides depth in the outfield. Ruiz remains an exceptional stolen base threat, as he racked up 38 swiped bags across 66 games with Triple-A Oklahoma City. However, his career .297 on-base percentage in the majors will limit his opportunities, and he also isn't likely to get regular playing time.

The Dodgers are expected to recall Ruiz from Triple-A Oklahoma City, Fabian Ardaya of The Athletic reports.

EDGE Analysis

Max Muncy is set to undergo an MRI on his left knee Thursday, and Ruiz's arrival suggests the former is headed to the 10-day injured list. Ruiz was acquired via trade just after Opening Day and has slashed .292/.394/.458 with eight home runs and 38 stolen bases over 66 games with Oklahoma City. The 26-year-old can be an impact fantasy player with his speed if he gets regular playing time, but regular at-bats with the Dodgers seem unlikely.

The Dodgers acquired Ruiz from the Athletics on Wednesday in exchange for right-hander Carlos Duran, Martin Gallegos of MLB.com reports.

EDGE Analysis

Ruiz has two minor-league options left and will report to Triple-A Oklahoma City. The 26-year-old has blazing speed that helped him steal 67 bases in the majors in 2023, but he's managed a career .243/.297/.343 batting line over parts of three big-league seasons and has also struggled defensively. The Dodgers will see if they're able to get more out of Ruiz than the Athletics were able to.

The Athletics designated Ruiz for assignment Sunday.

EDGE Analysis

The 26-year-old was the Athletics' main return piece in the trade that sent catcher Sean Murphy (ribs) to Atlanta in 2022, but the outfielder is no longer on the 40-man roster. Ruiz stole 67 bases as a rookie in 2023 but had an underwhelming .254/.309/.345 slash line in 132 games, and he played in just 29 big-league contests last season. Ruiz will remain at Triple-A Las Vegas if he goes unclaimed on waivers.