MLB trade rumors: Diamondbacks interested in Marlins' David Phelps, A.J. Ramos

The Arizona Diamondbacks are "showing significant interest" in Marlins reliever David Phelps, according to SiriusXM's Craig Mish. Mish notes that Arizona is also pursuing Marlins closer AJ Ramos, and could acquire both relievers in a package deal.

Phelps and Ramos, both right-handers, have been effective for the Marlins in late innings this season. Phelps, 30, has already accrued 44.0 innings with a 3.68 ERA and 17 holds. Heading into his fourth year of arbitration this offseason, Phelps is under team control through 2018.

As for Ramos, the 30-year-old's 3.51 ERA is a tick higher than recent seasons, but he's on pace to strike out batters at a career-high 11.3 K/9 over a full season. Ramos' 17 saves in 18 chances indicate he's still a lockdown reliever in high leverage situations. Like Phelps, Ramos has one final year of arbitration and is under team control for the 2018 season before becoming a free agent.

Every contending team can use bullpen help down the stretch, and the Diamondbacks are no different. The Fernando Rodney experiment hasn't gone as planned for Arizona, as Rodney has already blown five saves and holds an atrocious 5.58 ERA closing games. Phelps and/or Ramos could help solidify the later innings for the Dbacks as they chase their first postseason appearance since 2011.