HOUSTON -- Ryan Braun said he isn't reading into the number of times he's been hit with a pitch this season. The Brewers right fielder has been hit five times this season, already equaling his total for all of last season.

Braun leads the National League with nine homers since April 21.

"The better the hitter, usually you have to pitch him inside," Milwaukee manager Ron Roenicke said. "But you're going to hit guys when you pitch inside. The ball gets away from a guy and you're going to hit him. It's just one of those things."

Braun said that he gives no thought to the possibility that pitchers are throwing at him.

"I don't think about it in any way," Braun said. "It's completely irrelevant. It does happen. All good hitters have to be pitched inside. It's something I've always said. It's a part of the game."

Roenicke is more concerned about injury to his slugging outfielder.

"But what it does is, where it hits you, you're not going to be the same," Roenicke said. "I don't care what kind of padding you have on, it still hurts. There's still swelling there. He's getting hit in the elbow, he's getting hit in the back. So physically, it definitely affects you.

"Look at Rickie [Weeks]. Rickie gets hit on the hand -- Rickie's about as tough as it comes -- and he missed three games because of it."

Roenicke tweaks lineup to face Astros lefty

HOUSTON -- Milwaukee manager Ron Roenicke adjusted his lineup for Thursday's game in hopes of having more success against Houston lefty starter J.A. Happ.

Norichika Aoki was at the top of the lineup and playing center field for Nyjer Morgan.

"We feel good that he's going to hit lefties or righties," Roenicke said. "But numbers-wise he's shown that he can definitely hit lefties.

"Nyjer did OK early last year against him and then not so good late."

Brooks Conrad was in the lineup at first base, hitting seventh and Rickie Weeks remained in the lineup at second base, hitting second in the lineup.

"You can sit him for a game but he needs to hit," Roenicke said. "We need to get him going."

Roenicke said he'd hoped that a home run on Tuesday, one of just four hits over the last 34 at-bats, would lift Weeks out of his recent slump.

"He probably needs another game or two games where he really swings the bat well to where he really feels like he's got it back again."

Injury report: Gonzalez undergoes knee surgery

HOUSTON -- Brewers shortstop Alex Gonzalez underwent surgery to repair the ACL in his right knee Thursday at Froedtert Hospital in Milwaukee. The surgery was performed by Dr. William Raasch. Gonzalez has a six-month expected recovery time.

"It went well," said Brewers assistant GM Gord Ash.

Outfielder Carlos Gomez began a rehab assignment with Class-A Wisconsin last night, going 0-for-3 with a run scored. Gomez started in center field and played five innings.

"He ran well," Brewers manager Ron Roenicke said of Gomez, who is expected back with the Brewers on Sunday. "Hopefully he'll be swinging like he was swinging before he got hurt. If he's swinging like he was before, he's going to get more playing time.

"Certainly he'll be in there against left-handers. But if he's swinging like he was before, we'll put him in a lot more against right-handers."

Right-handed pitcher Brandon Kintzler continues rehab of his right elbow.

"He's going to go see Dr. Raasch tomorrow and hopefully report to Huntsville," Ash said. "He said he felt fine, just wanted to check with the doctor, so we organized that for tomorrow."

Last call

• Jonathan Lucroy enters Thursday night's game batting .323 as a catcher (.337 overall), which is second in the National League at that position.

• Milwaukee is second in the National League in homers with 42, trailing only St. Louis (49).

• At 16-21, the Brewers enter Thursday night's game with the exact same record they had after 37 games last season.