MIAMI -- Marlins Park continues to gain praise.

Now, the new home of the Miami Marlins is being recognized for being environmentally sound.

Marlins Park is the first retractable-roof building in the world to receive LEED Gold Certification.

A plaque will be presented by the U.S. Green Building Council on Friday to recognize the achievement.

Miami's new home has a capacity of 37,000, and the roof guarantees all games will start on time.

"This is the best. We've got the roof. A beautiful facility," Marlins manager Ozzie Guillen said. "This is the best ballpark in baseball right now. I believe so. I haven't been in St. Louis. I've been in St. Louis to work [2011 playoffs], but I wasn't in St. Louis on the field. I don't think St. Louis is better than this.

"You come to Miami. Visit the beach in the morning, and visit this ballpark, 7-11 and do the routine for a weekend. Come out. It's nice. It's different. They did a tremendous job. They went from the worst to the best. That's a pretty big jump."

Marlins slugger Stanton flashing star power

MIAMI -- Wherever Giancarlo Stanton goes, he puts on a show in batting practice.

The Marlins' slugger is one of the strongest players in the game. He flexed his might again with his grand slam off Colorado's Jamie Moyer on Monday night.

The laser to left was estimated at 438 feet, and it knocked out some light panels in the auxiliary scoreboard in left field.

Stanton now has nine home runs, including eight in May.

The Marlins see Stanton clobber the ball over the wall on a daily basis during batting practice.

How would Stanton do on the national stage, like being a participant in the Home Run Derby during the All-Star break?

Players don't necessarily have to be picked to the All-Star team to compete in the Derby.

"That's up to him," Miami manager Ozzie Guillen said. "I don't see anybody who has more power than him in the big leagues. Nobody. I have all the respect for Jim Thome. I've seen Jim Thome hit. But this kid is out of control. He's out of hand. This kid has legit power."

Stanton is building an All-Star argument, with his nine home runs and 28 RBIs. But the National League has plenty of competition for outfield spots. Carlos Beltran (13), Ryan Braun (12), Matt Kemp (12), Jay Bruce (10) and Hunter Pence (10) have more home runs.

But none of them have broken a scoreboard.

Stanton is enjoying the attention.

"Why not?" he said. "You're not going to hide from doing something well, and helping the team win, and bringing commotion and attention to us playing well."

Stanton also has joined elite company. He is one of four players to have four grand slams before the age of 23. Ted Williams, Eddie Matthews and Ken Griffey Jr. are the others.

"That's good company," Stanton said. "Maybe I'll get five before 23."

Kearns day to day with tight right hamstring

MIAMI -- Austin Kearns, who has made an impact in a reserve role, was removed from Tuesday's game in the top of the fourth inning.

The 32-year-old outfielder sustained a tight right hamstring while scoring from first on Giancarlo Stanton's RBI double in the third inning. In the fourth inning, Colorado's Michael Cuddyer doubled to left and Kearns had a tough time moving to the ball.

Miami substituted Chris Coghlan in left field for Kearns, who had a walk, single and run scored. The club said Kearns is day to day.

A non-roster invitee in Spring Training, Kearns gradually won over the organization, and he beat out Aaron Rowand for the right-handed-hitting backup outfield spot.

"He got lucky he got hot for three days, because he was my first release, when we had the meetings," manager Ozzie Guillen said. "When I saw him swing the bat, I was like, 'Wow!' It's different. He prepares himself different than anybody else. Then, I think he got a couple of nice at-bats.

"Obviously, Rowand was struggling. We needed a guy off the bench, a right-handed hitter, professional hitter, who could go out and help us. That's the reason he made this ballclub."

Kearns has been an unsung, yet big pickup for the Marlins.

The 32-year-old raised his batting average to .362 with three home runs and nine RBIs after collecting four hits in Monday's 7-4 win over the Rockies at Marlins Park.

Kearns enjoyed a solid spring, and ended up easily winning a roster spot.

"If I could have cut people, he might have been the first one to go out," Guillen said. "We had to let him play because of the problem we had. He beat Rowand easily. He earned the spot."

A Lexington, Ky., native, Kearns was the first-round Draft pick of the Reds in 1998. Had he not gone pro at that point, he was prepared to attend the University of Florida.

The Gators back then had outfielder Brad Wilkerson, who also was from Kentucky. Wilkerson went on to have a productive MLB career.

"Brad Wilkerson was down there," Kearns said. "He was playing there at the time. He was from Kentucky. He was my host. I just went down there and I just loved it. I felt like that was the place for me."

But being the seventh overall pick was too attractive for Kearns to bypass signing with Cincinnati.

Infante expected to start on Wednesday

MIAMI -- The initial hope was Omar Infante would be back in the Marlins' starting lineup on Tuesday.

Now, Wednesday is the likely date.

Infante traveled to Venezuela on Sunday after learning that his grandfather passed away. He has missed three straight games.

Playing on Tuesday was a possibility, but Infante's flight into Miami was delayed due to inclement weather.

"The Sunshine State," scoffed Miami manager Ozzie Guillen. "I've never seen the sun since I've been living here. He couldn't land in Miami."

Infante is having an All-Star-caliber season, batting .326 with 10 doubles, six home runs and 20 RBIs.

Donnie Murphy made his third straight start at second base on Tuesday.

Infante is expected to join the team sometime on Tuesday night. But Guillen is leaning against having to use his regular second baseman.

"No matter what, I wasn't going to play him anyway," Guillen said. "The last couple of days have been tough. He was back in Venezuela. He was taking a long flight. He wasn't part of my plans. Be ready to play tomorrow."