The D-backs have been seeking a starting pitcher all winter, exploring trade possibilities for the Rays' David Price and the Cubs' Jeff Samardzija, and they were one of the finalists for the services of right-hander Masahiro Tanaka, who signed a $155 million deal with the Yankees.
Matt Garza was another pitcher the D-backs had interest in, but he was able to get a four-year deal from the Brewers. Arizona general manager Kevin Towers had said during the Winter Meetings that he did not anticipate offering a deal longer than three years to any free agent pitcher other than Tanaka.
Earlier this week the D-backs decided to take another look at possible free agents on the market, particularly Arroyo.
Free-agent pitchers Ervin Santana and Ubaldo Jimenez are tied to Draft compensation, meaning the D-backs would have to surrender their first-round pick in this year's Draft should they sign one of them. Arroyo, however, would not cost a Draft pick.
Arroyo, who turns 37 later this month, was 14-12 with a 3.79 ERA last season for the Reds and has been a workhorse during his career. Over the last nine seasons, Arroyo has thrown at least 199 innings.
D-backs pitchers and catchers are set to report to Spring Training on Thursday.
Right now, the D-backs rotation looks to include Patrick Corbin, Wade Miley, Trevor Cahill and Brandon McCarthy, with Randall Delgado and top prospect Archie Bradley among those competing for the No. 5 spot in the rotation.