More Yankees: Lyle Overbay Joins the Fray
Demel appeared in one game for the Arizona Diamondbacks last season, allowing one run on two hits with a walk over one inning. He spent a majority of the season in Triple-A, posting an ERA of 4.07 over 56 appearances with a strikeout-to-walk ratio (SO/BB) of 3.41.
The Astros claimed Demel off waivers from the D'backs in November. Over parts of three seasons in the majors, the 27-year-old owns a career ERA of 4.95 with 1.85 SO/BB. He's maintained a 3.21 ERA with 2.43 SO/BB in six years in the minors.
Otero made his major league debut last season, appearing in 12 games for San Francisco. He surrendered eight earned runs over 12 1/3 innings pitched, with two walks and eight strikeouts.
The 28-year-old spent a majority of the year pitching for San Francisco's Triple-A affiliate, maintaining an ERA of 2.90 over 62 innings. He owns a career ERA of 2.12 with a strikeout-to-walk ratio of 6.16 over six seasons in the minors.