3:35pm: The Diamondbacks have tweeted Sipp has been optioned to Triple-A Reno.
10:22 am: The Diamondbacks have designated Tony Sipp for assignment, according to Nick Piecoro of the Arizona Republic (via Twitter). The move will create roster space for right-hander Brandon McCarthy.
Sipp, 30, had a 3.86 ERA on the year with 10.2 K/9, 5.0 BB/9, 1.10 HR/9, and 28.1% groundball rate in 32 2/3 innings this season. He was drafted in the 45th round by the Indians in '04, joining Arizona in the December 2012 three-team deal involving Shin-Soo Choo, Drew Stubbs, Didi Gregorius, Trevor Bauer, and others.