In 2019, the New York Mets came into the season with Edwin Diaz entering the season as the team’s closer, who was coming of a historic season, saving 57 games with the Mariners the previous year, tied for the second-most saves in a season by a pitcher in MLB history.
However, despite starting the year strong, Diaz struggled mightily in the second half of the year, due to a combination of overuse early in the season, along with injury and difficulty locating his slider, although he did finish with one of the highest strikeout rates in the MLB.