Reynolds was called up to the majors for the first time on August 19, 2010.[1]
Arizona Diamondbacks
He was traded to the Arizona Diamondbacks on November 20, 2012, in exchange for Ryan Wheeler. On June 10, 2013, Reynolds was placed on the 15-day disabled list with a left elbow strain. On September 24, Reynolds underwent Tommy John surgery, sidelining him for at least most of 2014.[2] In 30 games in 2013, Reynolds went 0–2 with 5 holds, 2 saves and a 1.98 ERA, striking out 23 in 27.1 innings.
On October 15, 2013, Reynolds signed a one-year, $550,000 deal with a $600,000 club option for 2015.[3] On March 29, 2016, Reynolds was released by the Diamondbacks.[4]
On June 24, 2016, Reynolds contract was purchased by the San Francisco Giants and he was assigned to the Double–A Richmond Flying Squirrels. On July 14, Reynolds was promoted to the Triple–A Sacramento River Cats On July 28, Reynolds was called up from the minors when Josh Osich was placed on the disabled list.[5] He made eight appearances for San Francisco, struggling to a 7.50 ERA with three strikeouts across six innings pitched. Reynolds was designated for assignment by the Giants on September 27.[6] He cleared waivers and was sent outright to Sacramento on October 5. Reynolds elected free agency following the season on November 7.[7]
On December 23, 2016, Reynolds re–signed with the Giants on a minor league contract.[8] He spent the year with Triple–A Sacramento, making 29 appearances and logging a 3.86 ERA with 27 strikeouts in 30+1⁄3 innings pitched. Reynolds elected free agency following the season on November 6.[9]