© 2013 MLB Advanced Media, L.P. All rights reserved.

5/26/2013 7:30 P.M. ET

Rookie Dietrich flashing his power

CHICAGO -- Marlins rookie Derek Dietrich gave the White Sox fits during their weekend series. While he went hitless on Sunday, he smacked home runs in the first two games of the series, including a game-tying shot in the ninth on Saturday.

His two home runs in the series gives him three long balls that have either tied a game or given the Marlins a lead, which is tied for second among all Major League rookies behind Braves catcher Evan Gattis' seven. The second baseman's three home runs this month are tied with Rockies third baseman Nolan Arenado and Dodgers outfielder Scott Van Slyke for fourth among rookies.

After Sunday, Dietrich is hitting .232 with seven RBIs, and he saw his streak of reaching base end at 14 games.

"I've been competing every at-bat," Dietrich said. "That's what I try to do -- get on base, shake it up and try to help the team win."

Eovaldi has encouraging rehab start

CHICAGO -- Marlins starter Nathan Eovaldi flashed a glimpse of promise on Saturday night in his first rehab start since he was placed on the 60-day disabled list with right shoulder inflammation on March 24.

The right-hander threw five innings for Class A Jupiter, allowing one run and just four hits. He also topped out at 97 mph on the stadium radar gun.

The plan was for Eovaldi to throw 60-70 pitches to ease him back into live games. He ended up throwing 64, while facing 18 hitters on the night. The 23-year-old was acquired from the Dodgers in exchange for Hanley Ramirez in July. He was 3-7 with a 4.43 ERA in 12 starts with the Marlins in 2012.

LoMo making progress in rehab games

CHICAGO -- Marlins outfielder Logan Morrison plated Class A Jupiter's only run on Saturday night with his ninth-inning single. He's now knocked in a run in three straight rehab games.

In his five rehab starts with the Hammerheads, Morrison is hitting .211 but boasts a .348 on base percentage. He's drawn four walks in 23 plate appearances.

Morrison will likely be promoted to Double-A Jacksonville on Monday, depending on how he feels. He's recovering from right knee inflammation that has kept him on the disabled list all season.

Ethan Asofsky is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.