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8/13/2014 8:21 P.M. ET

Bucs claim R. Cabrera off waivers from Detroit

DETROIT -- As the series between the Pirates and Tigers shifted to Detroit on Wednesday, catcher Ramon Cabrera took the opposite trajectory -- from the Tigers' organization to Pittsburgh's.

The Pirates claimed Cabrera off waivers then optioned him to Double-A Altoona. He had been hitting .277 with 47 RBIs in 107 games with Double-A Erie this season.

In order to clear room for Cabrera, who was traded from Pittsburgh to Detroit earlier in his career, the club designated right-hander Wirfin Obispo for assignment.

Martin tallies 1,000th career hit on RBI double

DETROIT -- Russell Martin's 1,000th career hit came at a huge moment for the Pirates on Wednesday night.

Trailing the Tigers, 1-0, in the third inning at Comerica Park, Martin doubled off the right-field wall, scoring Josh Harrison and reaching the career milestone.

The extra-base hit also extended the 31-year-old Martin's hit streak to 11 games.

Martin is the 13th Canadian-born player to accumulate at least 1,000 hits in a Major League career. Of Martin's 1,000 hits, 174 of them have come with Pittsburgh.

Locke addresses story on MLB investigation

DETROIT -- Pirates pitcher Jeff Locke spoke Wednesday following the publication of a story in Sports Illustrated that outlined Major League Baseball's investigation into a sports handicapper's claims that he and Locke fixed games together.

Locke, who was notified of the investigation last year, was cleared of any potential wrongdoing. He took the opportunity Wednesday to reiterate that for the record.

"I was 100-percent cooperative with MLB," Locke said Wednesday. "They checked me out -- 100-percent clear."

All of the claims by the handicapper, a childhood friend of Locke's, were made without Locke's knowledge, the investigation concluded.

"I think I come from a small, extremely envious town," Locke said of his hometown of North Conway, N.H. "A lot of jealousy. It can be extremely distracting, extremely frustrating for me to feel like you have to defend yourself for no reason. But the dust settles."

Games in Detroit give Alvarez more chances to hit

DETROIT -- While the Pirates have been without Pedro Alvarez recently as he focuses on learning the intricacies of first base, the Detroit leg of the home-and-home series this week gives Pirates manager Clint Hurdle a good chance to get Alvarez back in the lineup.

Alvarez made his first start since August 2 on Wednesday, though he's entered six games since then. He batted sixth and served as the designated hitter.

"I think it's important that we give him an opportunity to bundle some at-bats here moving forward," Hurdle said. "This gives us a seamless opportunity to do so."

Alvarez entered the game hitless in his last nine at-bats and hasn't homered since July 11.

Worth noting

• Neil Walker was out of the lineup again Wednesday, marking his 10th absence in the team's last 11 games. Hurdle said he expects to have an update on Walker and the lower-back tightness that has sidelined him after Wednesday's game.

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