O'Brien was called up by the Marlins on Saturday, Jordan McPherson of the Miami Herald reports.

EDGE Analysis

O'Brien is up to replace Garrett Cooper, who landed on the injured list with a hand contusion. O'Brien went 3-for-27 at the plate earlier in the season and owns a career .204/.268/.443 slash line over parts of four seasons.

O'Brien was optioned to Triple-A New Orleans on Friday, Jordan McPherson of the Miami Herald reports.

EDGE Analysis

O'Brien has started nine games in right field with Garrett Cooper (calf) on the injured list, but struggled mightily by going 3-for-27 with 14 strikeouts. Austin Dean was called up from New Orleans to bolster Miami's outfield depth.

O'Brien went 1-for-3 with a walk and a solo home run in Saturday's 4-2 win over the Braves.

EDGE Analysis

The 28-year-old connected off Kyle Wright in the fifth inning for his first homer of the year. O'Brien is still trying to prove he belongs in the majors, but the early results haven't exactly been encouraging -- he has only one other hit through five games to go along with a 2:9 BB:K, leading to a .118/.211/.294 slash line.

O'Brien is not in the lineup Wednesday against the Mets, Andre Fernandez of The Athletic reports.

EDGE Analysis

O'Brien will give way to Rosell Herrera in right field Wednesday after starting the last three games. Since being recalled from the minors last week, O'Brien is just 1-for-12 with seven strikeouts.

O'Brien was recalled by the Marlins on Sunday, Joe Frisaro of MLB.com reports.

EDGE Analysis

O'Brien returns to Miami to replace the injured Garrett Cooper (calf). He will immediately jump into the starting lineup, batting seventh Sunday against the Rockies. O'Brien continued to struggle to make contact throughout spring training -- he struck out 19 times in 41 at-bats -- though he has also flashed the ability to hit for power throughout his time in the minor-leagues.

O'Brien was optioned to Triple-A New Orleans on Saturday, Andre Fernandez of The Athletic reports.

EDGE Analysis

O'Brien seemed to be in line for a regular role in a corner outfield spot, but he won't get the chance right away. He impressed in a 22-game sample in the big leagues last season, hitting .273/.338/.530, but the Marlins will go with other options for now. Garrett Cooper could be in line for a starting role with O'Brien out of the picture.

O'Brien went 2-for-3 with a double and five RBI in Monday's Grapefruit League game against the Nationals.

EDGE Analysis

While the 28-year-old is still looking for his first spring homer and is hitting only .216 (8-for-37) through 16 games with a 6:18 BB:K, half of those hits have been two-baggers. The Marlins are counting on O'Brien to supply some much-needed power to the heart of their lineup, which should give him a long leash to begin the regular season even if his contact issues carry forward, but he remains a risky fantasy option -- albeit one with intriguing upside.

O'Brien went 2-for-5 with a grand slam and five RBI in Sunday's spring game against Atlanta.

EDGE Analysis

O'Brien kicked off the scoring in the first inning on a single to right field and clubbed a grand slam in the fifth to give the Marlins a 5-1 lead. After a slow start to spring, he's now 4-for-26 at the dish. He still has a long way to go to earn a roster spot, although Sunday's performance is a step in the right direction.

O'Brien has gone 0-for-11 with seven strikeouts while trying to transition to right field this spring, Barry Jackson of The Miami Herald reports.

EDGE Analysis

The Marlins are hoping the minor-league slugger, who hit 30 homers between Double-A and Triple-A last season before swatting four more in 22 September games for Miami, is adequate enough defensively that they can get his bat into their underpowered lineup, but so far O'Brien isn't giving the club much reason to keep him around. He still has time to find his stroke at the plate, and his competition for a roster spot is lackluster at best, but for now the 28-year-old remains little more than a deep-league lottery ticket for fantasy purposes.

O'Brien went 1-for-3 with a home run and three RBI in the Marlins' 6-4 win over the Phillies on Sunday.

EDGE Analysis

O'Brien plated two runs on his fourth-inning home run off Nick Pivetta and padded the Marlins' lead with a RBI groundout in the sixth. The 28-year-old has started in three of the Marlins' last five games and could provide some useful power numbers in NL-only formats over the final two weeks of the season, though a 38.8 percent career strikeout rate in the majors gives him significant batting-average downside.