Arroyo was in Cincinnati on January 22 to throw for the Reds, according to Robert Murray of Baseball Essential, though no deal is close.
Arroyo spent the 2015 season with three teams, the Diamondbacks, the Braves, and the Dodgers, but did not throw a single pitch, as he had Tommy John surgery.
The soon-to-be 39-year-old probably won't be looking for a long-term deal. He could be a veteran presence in any rotation, including Miami's, who has reportedly been connected to other veteran arms, like Doug Fister, Tim Lincecum, and Cliff Lee.
Once one of the most durable pitchers in the Major Leagues, Arroyo threw 200 or more innings every single year from 2005 to 2013, excluding 2011, when he threw 199.
His last full season came in 2013, when he went 14-12 with a 3.79 ERA and a 124 to 34 strikeout-to-walk ratio in 202 innings pitched. He was worth 1.2 FanGraphs Wins Above Replacement.
Arroyo has pitched 15 seasons in the Major Leagues, registering a 4.19 ERA and a 2.38 strikeout-to-walk ratio in 2,364 2/3 innings pitched. He has been worth 24.8 fWAR in his career, pitching for the Reds, Pirates, Red Sox, and Diamondbacks.