As a Cy Young candidate with the Los Angeles Dodgers last year, Zack Greinke was so dominant he didn't suffer his fourth loss until the division series. Things haven't gone as smoothly since he joined the Arizona Diamondbacks. The right-hander looks to avoid his fourth defeat in nine starts as Arizona seeks its second winning streak in almost four weeks and first back-to-back home victories of the season Tuesday night against the New York Yankees.