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8/27/2013 7:53 P.M. ET

Polanco passes tests, returns from concussion DL

WASHINGTON -- Eight days after he was placed on the seven-day concussion disabled list, Placido Polanco passed a series of tests and was cleared to rejoin the Marlins on Tuesday.

Polanco was hit on the left side of his helmet by a 94-mph fastball on Aug. 16 against the Giants, and didn't initially think that he would have to miss more than a handful of games. Then he woke up with a headache one morning and felt groggy.

"I was just taking it one day at a time," Polanco said. "I was feeling better every day. Then when I started doing activities, I would feel a little dizzy, and they'd stop me from doing whatever I was doing. And then the next day, I would do some more. I was progressing slowly."

While this was Polanco's first stint on the concussion DL, he could not say for sure whether it was his first concussion. A 16-year Major League veteran, Polanco said that he has been hit in the head by pitches and knocked his head on the ground while sliding. He once had a headache for an entire week.

"I knew I had something back then," he said. "I just didn't know what it was."

Polanco applauded Major League Baseball for implementing the concussion DL in 2011, preaching the importance of protecting a player's life, as well as his career. The 37-year-old said that he feels ready to go and does not expect the concussion to have any lingering effects this season.

"I've been taking ground balls, I've been hitting batting practice, all that stuff," Polanco said. "Today will be a test if I dive for a ball or do a hard slide, but I don't expect anything to happen."

Harvey injury has Redmond reflecting on Fernandez

WASHINGTON -- When news broke Monday that Mets starter Matt Harvey has a partially torn ulnar collateral ligament and could require Tommy John surgery, Marlins manager Mike Redmond thought of his own young ace, Jose Fernandez.

Miami will shut down Fernandez as a precaution after he reaches 170 innings, likely after two more starts. Redmond said that Harvey's injury reinforced his belief in the Marlins' course of action with Fernandez.

"I think it does. But like I said, Harvey had a pitch limit, too," Redmond said. "You don't know. That's the thing. They were going to shut him down around 205 innings, whatever, and he's a couple years older than Jose, so in their mind that was the right thing to do. And he still got hurt.

"Everybody has the same goal in mind, and that's to protect the player and try to do what's best for the player. But saying that, you can sit there and think about how you're going to best protect the player until you're blue in the face, and sometimes guys get hurt. That's just the way it goes. That's baseball."

Fernandez was named the co-National League Player of the Week on Monday, the second time he's won in the past four weeks. He was 2-0 with a 0.69 ERA in two starts, allowing just one earned run in 13 innings.

"I don't really think about that stuff," Fernandez said. "As long as I keep giving my team a chance to win, co-Player of the Week, Rookie of the Year, all that stuff, I don't care. It's just play for this team, and as long as we win, that's what I care about."

Redmond said that Fernandez would "probably" make only two more starts before being shut down for the rest of the season, adding that he will not treat the 21-year-old any differently.

"If his next start, he's got a chance to win and he goes eight innings, he goes eight innings," Redmond said. "I'm going to use him the same way I have all year. And when he reaches that limit, that's it."

Coghlan likely to join Marlins on Sunday

WASHINGTON -- Manager Mike Redmond said Tuesday that Chris Coghlan has been promoted to Triple-A New Orleans and should rejoin the Marlins when rosters expand on Sunday.

Coghlan, who has been on the disabled list since early June with a right calf injury, played third base at Class A Jupiter and will continue to play there at Triple-A. In nine games at Class A, he hit .185 with one triple and two RBIs.

The 2009 National League Rookie of the Year, Coghlan has almost exclusively been an outfielder at the Major League level. But with with Christian Yelich now in left field and Jake Marisnick in center, Redmond wants to see if Coghlan could factor into the team's long-term plans somewhere else.

"From what I've heard, things are going well and he's progressing," Redmond said. "I think it's a situation where it's a chance for us to get a look at him at another position. We're always trying to figure out where we can utilize his ability. We know he can play the outfield, and we know he was an infielder, so we thought we'd put him at third and give him a shot and hope that it works."

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