While the Arizona Diamondbacks have been busy signing free-agent pitchers, they just let one go who was once a huge prospect.

In the first round of the Triple-A phase, the Athletics ended up selecting Abel Mercedes from the Houston Astros. In the second round of the Triple-A phase, the A's added a similar pitcher in Darlin Pinales, a 23-year-old right-hander that had been in the Arizona Diamondbacks system.

Here is what the Diamondbacks are reportedly looking for in a trade that includes star Ketel Marte, who's been in a bevy of rumors.

After signing right-hander Michael Soroka to a one-year, $7.5 million deal, the Arizona Diamondbacks are still in need of rotation help.

The Arizona Diamondbacks have agreed to a deal with former Houston Astros right-hander Jose Urquidy, according to a recent report from Excélsior's Emmanuel Camp