Zack Greinke hasn't allowed a run in nearly 44 innings, but Bryce Harper believes his streak has been aided by umpires.

After the Los Angeles Dodgers topped the Washington Nationals 5-0 on Sunday, Harper asserted "when you're getting 6 inches off the plate, it's tough to face him."

"For me, I don't think he was very tough," Harper said, according to The Washington Post. "He's a great pitcher. He does what he does."

Greinke's scoreless innings string is the longest in the Major Leagues since Orel Hershiser set the record of 59 shutout innings in 1988 with the Dodgers.

Harper later amended his comments, calling Greinke "a damn good pitcher."