Pirates shortstop Konnor Griffin, baseball's No. 1 prospect, hits RBI double in first MLB at-bat Griffin hit an RBI double in his first major-league at-bat, then came around to score on a single. Content Original Link: https://sports.yahoo.com/mlb/article/pirates-shortstop-konnor-griffin-baseballs-no-1-prospect-hits-rbi-double-in-first-mlb-at-bat-204548587.html