CBS Sports’ Heyman: Aaron Hill is Arizona’s top trade candidate

The MLB trade deadline is nine days away, and one question looms large — will the Arizona Diamondbacks be buyers or sellers?

CBS Sports’ Jon Heyman said that the Arizona Diamondbacks should have options if they choose to sell at the deadline.

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Veteran infielder Aaron Hill heads their list of trade candidates. They’d also part with reliever Addison Reed, starter Jeremy Hellickson and Oliver Perez, who is still a useful lefty (though a Mets person mentioned he might be better off on one of the other 28 teams).

Hill, 33, is batting .220 with four home runs and 23 RBI for the D-backs this season. He has career splits of .268/.323/.424 with 149 home runs and 634 RBI across his 11-year career.

Reed, 26, has struggled in the majors this season, posting a 2-2 record with a 5.92 ERA in 25 appearances. He is currently at Triple-A Reno, where he is 1-1 with a 2.16 ERA in nine appearances.

Hellickson, 28, was acquired last offseason via a trade from the Tampa Bay Rays, and the 2011 American League Rookie of the Year has gone 6-6 with a 4.86 ERA in 18 starts this season.

Perez, 33, has been solid in two seasons as a lefty specialist for the D-backs. He is currently 1-1 with a 3.46 ERA in 43 appearances this season.

Entering play Wednesday, Arizona is 43-49 , 8.5 games out of first place in the National League West.