David Robertson

Chicago White Sox closer David Robertson throws against the Oakland Athletics during the ninth inning of a baseball game in Chicago, Sunday, Aug. 21, 2016. The White Sox won 4-2.

(Nam Y. Huh/AP Photo)

NEW YORK -- Even during a good night, there's reason to be concerned about the Mets bullpen depth.



When New York took a 7-2 lead on Miami in the bottom of the seventh inning on Tuesday night, it felt like the type of game in which Terry Collins could win without using closer Jeurys Familia or set-up man Addison Reed. But when Jim Henderson faltered in the top of the ninth, Familia was needed to close out what became a 7-4 victory.



The Mets, winners of 9 of 12, are on a roll. But that doesn't mean general manager Sandy Alderson won't add bullpen depth before the end of Wednesday's waiver trade deadline.



A name to watch? Current White Sox and ex-Yankees closer David Robertson, per the New York Daily News:



Two industry sources told the Daily News Monday that White Sox closer David Robertson had cleared waivers. One source said that the White Sox are interested in listening to offers for Robertson and would not require a blue-chip prospect in return. They may even be willing to pay some of the steep salary owed him over the next two seasons.



The Mets have never been a team to go looking to add salary. They made a cursory call to the White Sox about Robertson earlier last month, but nothing ever developed, a team source said. Robertson may be out of their price range, but if the Mets are serious about making a playoff push, they need to make an investment in their bullpen.



Robertson, 31, is in the second year of a four-year, $46 million contract and is owed $25 million over the next two years.

Heading into play on August 30, Robertson owned a 3.67 ERA--well above his career mark of 2.98. While still effective, Robertson's SO/9 rate of 12.0 during his Yankees career has dipped since joining the White Sox prior to last season.

Collins talks Met issues



There are more effective and productive relievers in the sport, but considering Robertson's track record, peripheral stats as recently as last year (2.52 FIP) and comfort with the New York market, the idea of a Robertson-Addison Reed-Familia three-headed bullpen combination would change the end of games for Collins.

Joe Giglio may be reached at jgiglio@njadvancemedia.com. Follow him on Twitter @JoeGiglioSports. Find NJ.com on Facebook.