Mets closer Addison Reed works against a San Diego Padres...

Mets closer Addison Reed works against a San Diego Padres batter during the ninth inning of a game Tuesday, July 25, 2017, in San Diego. Credit: AP / Gregory Bull

SAN DIEGO — On his own, Mets closer Addison Reed represents the Mets’ most sought-after trade chip, and their best chance of beginning a quick retooling with an eye toward contention in 2018.

But the Mets have at least kicked around the idea of packaging Reed in larger deals as a way of potentially improving their return, a source said on Wednesday. The concept may fit the Mets, whose other tradable commodities have attracted relatively mild interest as the July 31 non-waiver trade deadline approaches.

Infielder Asdrubal Cabrera has improved his stock in recent days with his move to third base. But even with a market developing for him, he appears likely to bring only a marginal return if traded by himself.

The same holds true for the rest of the Mets on expiring contracts, a list that includes Lucas Duda, Jay Bruce, Curtis Granderson and Rene Rivera. Despite a standout offensive season, a general lack of demand for corner outfielders has kept Bruce’s market soft. In the case of Granderson, a source called interest to this point “minimal.”

The Rays have recently expressed some interest in Duda and Reed, a source confirmed, which would seemingly represent a chance for the Mets to pair the duo in a package.

Whether Reed is traded by himself or as part of a larger deal, the Mets remain confident that his market is still solid despite his recent stumbles. Though the 28-year-old has allowed a run in each of his last two outings, he owns a 2.63 ERA with 18 saves in 20 opportunities.

Cespedes in lineup

Yoenis Cespedes was in the starting lineup Wednesday night, one day after being pulled as a precaution when his quad muscles tightened on a trip around the bases . . . Neil Walker’s minor league rehab has progressed to the point where he may rejoin the team this weekend in Seattle, Terry Collins said.

Extra bases

Robert Gsellman will begin a minor-league rehab assignment when he starts for Double-A Binghamton on Thursday. The righthander has been on the disabled list since June 28 after straining his left hamstring . . . Lefthander Tommy Milone began a rehab assignment on Tuesday, allowing two runs (one earned) in 1 2⁄3 innings in the Gulf Coast League. Milone has been out since May 24 with a sprained left knee . . . Former Mets second-base prospect Dilson Herrera underwent season-ending shoulder surgery. He was the primary piece sent to the Reds in last year’s trade deadline acquisition of Bruce.

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