Johnny Cueto, Kansas City Royal

Johnny Cueto, of course, lost the most famous Pirates game of this generation, the 6-2 victory over Cincinnati in the wild card game of 2013. Other than that, though:

• He has an 18-4 record against Pittsburgh. That's twice as many victories as he has against any other club.
• He's pitched two of his career five shutouts against the Pirates.
• His career 2.13 ERA against the Pirates is his lowest against any team (minimum 50 innings pitched), as his 0.984 WHIP.
• His slash line allowed against Pittsburgh: .201 batting average, .260 on base percentage, .324 slugging percentage. Naturally, each of those are the lowest he's allowed (minimum 50 innings pitched). That's basically like the Dodgers' Zack Greinke last season. As a hitter. Greinke, a pitcher, batted .200/.262/.350 in 2014.

The Pirates have ten more games this year against the Reds. They'll be glad to not have to face their old nemesis. He's been traded to Kansas City. But he's a free agent at the end of the season, so he could come back to the National League.