Toronto pitcher J.A. Happ was released from a St. Petersburg, Fla., hospital in good condition Wednesday, one day after being hit on the head by a blazing line drive, and placed on the 15-day DL.

The Blue Jays said the 6-foot-6 lefty was responsive and feeling better.

"I feel really fortunate," Happ said after he limped to a news conference following his release from Bayfront Medical Center. "It looks like I moved just a little bit. I've got some stitches and there's a fracture in the skull, I suppose, behind my ear, but it's not serious or threatening. We'll let those heal."

The former Phillie was hit by a ball off the bat of the Rays' Desmond Jennings. Happ quickly raised his glove in front of his face, but the ball slammed into the left side of his head, making a sound that was heard in the press box.

The hit left players on both teams shaken, and revived questions about whether MLB is doing enough to protect pitchers from line drives moving at 100 m.p.h. from a distance of just 60 feet, 6 inches.

Marlins Park shrinkage

No one is surprised about this announcement: The Marlins have decided to close the upper bowl at their brand-new, taxpayer-funded stadium for some weeknight games. A team representative said decisions would be made before each homestand.

Marlins Park is last in the NL in attendance, with an average of 18,864 fans per game, ahead of only Seattle, Kansas City, and Cleveland of the AL. That number includes people who bought or received tickets, not those who actually showed up.

About 10,000 of the stadium's 37,442 seats are in the upper bowl.

The Marlins averaged 27,401 fans last season, but the team said an average of only about 17,000 attended each game.

Long way from perfecto

The Astros moved righthander Philip Humber, who a year ago pitched the 21st perfect game in major-league history, into the bullpen.

Humber, who was with the Chicago White Sox when he hurled his gem vs. the Seattle Mariners on April 21, 2012, is 0-7 with an 8.82 ERA this season. The dip wasn't totally unexpected: The 30-year-old finished 2012 with a 5-5 record and a 6.44 ERA.

Hurt locker

The Diamondbacks put closer J.J. Putz on the 15-day disabled list with a strained right elbow, suffered Tuesday vs. the Dodgers.

The A's put outfielder Josh Reddick on the DL with a sprained right wrist.    - Wire reports