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6/25/2014 11:47 A.M. ET

Astros to start Peacock on Friday; Buchanan to 'pen

HOUSTON -- Astros manager Bo Porter said on Tuesday that Brad Peacock will start on Friday and Jake Buchanan will move to the bullpen.

Buchanan started for the Astros against the Rays on Saturday in place of Peacock, who was recovering from food poisoning. In 4 1/3 innings, Buchanan gave up five earned runs and eight hits in an 8-0 loss in his Major League debut.

He'll move to the bullpen but was not available to throw Tuesday night, considering the close proximity to his last start.

"The decision was more predicated on allowing Peacock to do everything he needed to do to start on Friday," Porter said. "That's why we made the move today."

Correa, Santana named to Futures Game roster

HOUSTON -- Astros prospects Carlos Correa and Domingo Santana were named to the 2014 SiriusXM All-Star Futures Game on Tuesday.

The Astros are one of 20 teams to have two prospects selected to the game, which will be played on Sunday, July 13, at Target Field in Minneapolis. Both Astros were to play for the World Team against the U.S. squad.

This is the second selection for Correa, a shortstop and the Astros' No. 1 prospect, who was selected last year as a result of the first-ever Futures Finalists Vote. He played in the game along with George Springer, who is in the midst of a standout rookie year for the Astros.

The 19-year-old Correa was hitting .325 with six home runs and 57 RBIs in 62 games this season at Class A Advanced Lancaster. He injured his right ankle on Saturday while sliding into third base for an RBI triple and is expected to miss significant time, along with the Futures Game. He was replaced on the World Team roster Wednesday by Angels prospect Jose Rondon.

"Carlos was worthy of this honor last year," general manager Jeff Luhnow said. "He's worthy of it again this year. It's unfortunate he's ... not going to be able to participate in the game."

Santana, a 21-year-old outfielder, was selected to his first Futures game. As the Astros' No. 7 prospect, Santana could be one of the next highly-touted prospects to make his Major League debut this year.

He's batting .296 this year for Triple-A Oklahoma City with 12 home runs, 47 RBIs and a .493 slugging percentage.

"Santana deserves the recognition," Luhnow said. "He's having a tremendous year at a very young age, at a very high level. I think we've seen he continues to improve his game and become a more complete player."

Altuve making strong All-Star case with bat

HOUSTON -- Along with his batting average, Astros second basemen Jose Altuve has consistently crept up in voting for the 2014 All-Star Game at Target Field in Minneapolis.

On Sunday, Altuve moved to fourth in the voting for second basemen, jumping in front of Brian Dozier of the Twins.

On Houston's recent six-game road trip, Altuve was 13-for-24 (.542), with four multihit games. His average for the season is an American League-best .336 entering Tuesday. He also leads the Major Leagues in hits with 103.

Altuve's 932,978 votes trail Robinson Cano of the Mariners (2,007,055), Ian Kinsler of the Tigers (1,338,272) and Dustin Pedroia of the Red Sox (1,264,329).

Fans can cast their votes for starters at MLB.com and all 30 club sites -- online or on a mobile device -- using the 2014 All-Star Game MLB.com Ballot Sponsored by Experian until Thursday, July 3, at 10:59 p.m. CT. The 2014 All-Star Game will be played at Target Field on Tuesday, July 15.

Fans may submit up to 25 online ballots, but they can also earn a one-time bonus of 10 additional online ballots. To access these additional online ballots, you must be logged into your MLB.com account when you submit any online ballot. If you do not have an MLB.com account, register on the site in accordance with the enrollment instructions for a free MLB.com account.

Fans this year once again can participate in the Home Run Derby Fan Poll. Fans will have the opportunity to select three players in each league who they would most like to see participate in the Home Run Derby. The 2014 Home Run Derby will be broadcast live on ESPN, ESPN HD, ESPN Deportes and ESPN Radio in the United States beginning at 7 p.m. CT on Monday, July 14.

The 2014 American League and National League All-Star teams will be unveiled on the 2014 MLB All-Star Game Selection Show during the weekend of July 5-6, with further details to follow on MLB.com. Immediately following the announcement of the AL and NL All-Star rosters, fans can begin voting to select the final player for each league's 34-man roster via the 2014 All-Star Game MLB.com Final Vote Sponsored by Experian. Fans will cast their votes from a list of five players from each league over the balloting period.

And the voting doesn't end there. The final phase of All-Star Game voting will again have fans participating in the voting for the Ted Williams All-Star Game Most Valuable Player Award presented by Chevrolet. During the Midsummer Classic, fans will vote exclusively online at MLB.com via the 2014 All-Star Game MLB.com MVP Vote Sponsored by Pepsi, and their voice will represent 20 percent of the overall vote that determines the recipient of the Arch Ward Trophy.

MLB.com will provide extensive online coverage of the All-Star Week festivities.

The 85th All-Star Game will be televised nationally by FOX, in Canada by Rogers Sportsnet and RDS, and worldwide by partners in more than 200 countries via MLB International's independent feed. ESPN Radio and ESPN Radio Deportes will provide national radio coverage of the All-Star Game. MLB Network and SiriusXM will also provide comprehensive All-Star Week coverage. For more information, please visit allstargame.com.

Astros to hold open tryout on July 1 in Houston

HOUSTON -- The Astros will hold an open tryout on Tuesday, July 1, at the Astros Urban Youth Academy.

The tryout will be administered by Astros South Texas Area scout Noel Gonzales-Luna. While there is no age restriction, the Astros recommend an age between 17-23.

Registration for the tryout begins at 8:30 a.m. CT. The event itself will start at 9:30 a.m. at 2801 S. Victory Drive.

Worth noting

• The Astros will open the gates to Minute Maid Park early on Thursday to accommodate fans who want to watch the World Cup match between the U.S. and Germany on the scoreboard. The gates will open at 10:30 a.m. CT for season-ticket holders and 11 a.m. for the rest of the public, and the game will remain on the board through batting practice until pregame videos have to be shown. The game is scheduled to start at 1:10 p.m.

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