Clayton Kershaw is now likely to make a fourth consecutive Opening Day start for the Dodgers on March 22, three days after his 26th birthday, against Arizona in the first game of Major League Baseball’s Opening Series in Sydney, Australia. That became highly probable when Zack Greinke left his exhibition start after four pitches Thursday with a mild right calf strain.

Clayton Kershaw watches the flight of his first career home run, starting the scoring in his own 4-0 shutout of the Giants last Opening Day.

If it becomes official, then all Kershaw has to do is maintain his pace and he could be known one day as the greatest Opening Day pitcher.

In his three Opening Day starts over the last three years, the left-hander has thrown 19 scoreless innings and the Dodgers are 3-0. That included seven innings (9 strikeouts) in a 2-1 home win over the Giants…