• Manager Torey Lovullo after D-Backs lose series vs. Nationals

    Manager Torey Lovullo after D-Backs lose series vs. Nationals

  • Braden Shipley after walking six in loss to Nationals

    Braden Shipley after walking six in loss to Nationals

  • D-Backs' Torey Lovullo after loss to Nationals

    D-Backs’ Torey Lovullo after loss to Nationals

  • Diamondbacks' Robbie Ray strikes out 10 in loss to Nationals

    Diamondbacks’ Robbie Ray strikes out 10 in loss to Nationals

  • Torey Lovullo on D-Backs' 6-3 win over Nationals

    Torey Lovullo on D-Backs’ 6-3 win over Nationals

  • Taijuan Walker on his short start vs. Nationals

    Taijuan Walker on his short start vs. Nationals

  • Shot Clock: Rockets sizzle, D-Backs fizzle?

    Shot Clock: Rockets sizzle, D-Backs fizzle?

  • A.J. Pollock on controversial play: "You guys saw the replay"

    A.J. Pollock on controversial play: “You guys saw the replay”

  • Descalso talks about walk-off home run over Rockies

    Descalso talks about walk-off home run over Rockies

  • Lovullo on pitching, more in D-Backs' wild win

    Lovullo on pitching, more in D-Backs’ wild win

  • Corbin discusses his scoreless outing vs. Rockies

    Corbin discusses his scoreless outing vs. Rockies

  • Fernando Rodney talks about his latest blown save

    Fernando Rodney talks about his latest blown save

  • Zack Greinke after outing vs. Rockies

    Zack Greinke after outing vs. Rockies

  • D-Backs' Shelby Miller to have Tommy John surgery

    D-Backs’ Shelby Miller to have Tommy John surgery

  • Diamondbacks fall 3-1 to Rockies

    Diamondbacks fall 3-1 to Rockies

  • Chris Owings on his two-homer night

    Chris Owings on his two-homer night

  • D-Backs' Taijuan Walker on his 11-strikeout performance vs. Padres

    D-Backs’ Taijuan Walker on his 11-strikeout performance vs. Padres

  • D-Backs' Shelby Miller considering Tommy John surgery

    D-Backs’ Shelby Miller considering Tommy John surgery

  • Fernando Rodney reacts to his blown save against the Padres

    Fernando Rodney reacts to his blown save against the Padres

  • Torey Lovullo reacts to Diamondbacks' 'heartbreaking' loss

    Torey Lovullo reacts to Diamondbacks’ ‘heartbreaking’ loss

  • Diamondbacks attendance hits new low

    Diamondbacks attendance hits new low

  • Diamondbacks pull away from Padres for 9-3 win

    Diamondbacks pull away from Padres for 9-3 win

  • Diamondbacks hold on for win over Padres

    Diamondbacks hold on for win over Padres

  • Shelby Miller on his injury, visit with team doctor

    Shelby Miller on his injury, visit with team doctor

  • Arizona Diamondbacks' Shelby Miller discusses arm injury

    Arizona Diamondbacks’ Shelby Miller discusses arm injury

  • David Peralta on his record-setting night

    David Peralta on his record-setting night

  • Robbie Ray reacts to Saturday's win over the Dodgers

    Robbie Ray reacts to Saturday’s win over the Dodgers

  • Diamondbacks use 9-run eighth to overwhelm Dodgers

    Diamondbacks use 9-run eighth to overwhelm Dodgers

  • Paul Goldschmidt on D-Backs' offense vs. Padres

    Paul Goldschmidt on D-Backs’ offense vs. Padres

  • Manager Torey Lovullo breaks down D-Backs' loss, road trip

    Manager Torey Lovullo breaks down D-Backs’ loss, road trip

Dave Stewart, former general manager of the Arizona Diamondbacks, has joined Massachusetts businessman Tagg Romney’s ownership group bid for the Miami Marlins, a high-ranking baseball executive told USA TODAY Sports.

The executive spoke only on the condition of anonymity since Romney has not publicly announced the addition of Stewart to his group, but Major League Baseball officials have been informed that Stewart is among the new investors.

Romney’s group, which already included five-time 20-game winner Tom Glavine, is one of the two finalists to buy the Marlins along with the group led by former Florida Gov. Jeb Bush and former New York Yankees star Derek Jeter.

The two groups have already made bids in excess of $1.3 billion that are being evaluated by MLB, but one executive with direct knowledge of the process said that Romney’s group made a higher bid.

Stewart, a four-time 20-game winner, also quietly was bidding for the Marlins with his own group of investors, and now most of his investors will also be joining Romney’s group. It’s believed that Stewart would be in charge of baseball operations if Romney’s group is approved by MLB, joining Magic Johnson of the Los Angeles Lakers as the only African-Americans to have partial ownership of a baseball franchise.

More: Diamondbacks’ bats continue to slumber on the road

“We have two very strong groups that we believe will have sufficient financial resources to complete the sale and run the team effectively,” MLB Commissioner Rob Manfred told the Miami Herald on Tuesday.

Romney, 47, the son of former presidential candidate Mitt Romney, is the founder and partner in Solamere Capital, a private equity firm. He previously worked as the head of marketing for the Dodgers.

Stewart, 60, the 1989 World Series MVP, has vast front-office and coaching experience since his retirement after the 1995 season. He worked as special assistant to GM Sandy Alderson of the Oakland A’s, special assistant to Kevin Towers of the San Diego Padres, assistant GM of the Toronto Blue Jays, and GM of the Diamondbacks.

MLB is expected to determine which bid will be accepted before their next owners’ meetings in New York on May 17-18.

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Friday’s game

Diamondbacks at Rockies

When: 5:40 p.m.

Where: Coors Field, Colorado

Pitchers: Diamondbacks RHP Zack Greinke (2-2, 3.19) vs. Rockies RHP German Marquez (0-1, 7.20).

TV/Radio: FSAZ/KTAR-AM (620), KHOV-FM (105.1).

Greinke gave up three runs – each run coming on a solo home run – in six-plus innings against the Rockies last week at Chase Field. SS Trevor Story, 1B Mark Reynolds and PH Alexi Amarista homered off him. … Greinke has eight walks and 40 strikeouts in 36 2/3 innings. That’s an improvement in both categories compared to his averages per nine innings last season. … Greinke has a 4.26 ERA in 44 1/3 innings in his career at Coors Field. … Marquez was impressive on Sunday against the Diamondbacks, tossing six scoreless innings, with one walk and eight strikeouts, in a game the Rockies lost 2-0 in extra innings at Chase Field. … Marquez was roughed up in his first start, allowing eight runs in four innings. … He had a 2.70 ERA in 10 innings at Triple-A Albuquerque before joining the rotation.

Coming up

Saturday: At Colorado, 5:10 p.m., Diamondbacks LHP Patrick Corbin (2-3, 2.29) vs. Rockies LHP Tyler Anderson (1-3, 7.71).

Sunday: At Colorado, 12:10 p.m., Diamondbacks RHP Taijuan Walker (3-1, 4.19) vs. Rockies RHP Tyler Chatwood (2-4, 5.40).

Monday: Off.

Tuesday: At Chase Field, 6:40 p.m., Diamondbacks TBA vs. Tigers RHP Justin Verlander (2-2, 4.21).

Up next

Colorado Rockies

Rockies update: The Rockies took two of three from the Diamondbacks at Chase Field over the weekend, then split the first two games of a three-game series against the Padres at Petco Park. They made a series of moves on Wednesday, bringing LHP Mike Dunn back from the disabled list and optioning RHP Carlos Estevez, and selecting the contract of C Ryan Hanigan to replace C Tony Wolters, who was placed on the seven-day concussion list. The Rockies are averaging 4.7 runs per game, ninth in the National League, and own a 4.52 ERA, which ranks fifth-to-last. As usual, they’re a far better offensive team at Coors Field, where they’re averaging 5.6 runs per game through 13 games, though they’re only 7-6 at home. IF/OF Ian Desmond had a two-homer game on Wednesday, and is 5 for 14 since coming off the DL.