Four months after I gave a scouting report culled with the help of executives and scouts on what to expect from Roki Sasaki—one of them described his ceiling as “best pitcher in the world”—how did the Los Angeles Dodgers righthander measure up to the advance billing in his first outing?

The Roki Sasaki splitter is here, and it might be even nastier than we thought. Sasaki was all-around electric in his Dodgers Spring Training debut Tuesday night, but his splitter was the star of the show.