Complex sentence: No Met pitcher has ever thrown a no-hitter until June 1 2012 when Johan Santana no-hit the Cardinals, and the franchise's hurlers have gone more than 7,800 games without pitching one--longer than any other Major League franchise.
Split into simpler sentences: No Met pitcher had ever thrown a no-hitter until June 1 2012 when Johan Santana no-hit the Cardinals. The franchise's hurlers had gone more than 7,800 games without pitching one--longer than any other Major League franchise.