When Zack Greinke's scoreless innings streak ended 13 1-3 shy of Orel Hershiser's all-time record, he mentioned that maybe someone eventually will break what for so long seemed to be an unreachable mark. It hasn't even taken two weeks for another member of the Los Angeles Dodgers' rotation to threaten Greinke's streak as baseball's longest in 27 years. Clayton Kershaw can't reach Hershiser's 1988 record for a few more starts, but he can eclipse Greinke's outstanding run by going the distance Friday night at PNC Park as he opposes Gerrit Cole and the Pittsburgh Pirates.