Tyler O'Neill returns to the Red Sox lineup for a critical game against the Arizona Diamondbacks, who are looking to maintain their lead in the NL Wild Card race. The Red Sox aim to salvage the series after suffering defeats in the first two games, with righty Tanner Houck starting against Merrill Kelly. Meanwhile, the Diamondbacks, fresh off a sweep of the Miami Marlins, have been performing well since July, boasting a .737 win percentage. In a unique MLB scenario, catcher Danny Jansen will play for both teams in a suspended game against the Blue Jays, making history. The matchup at Fenway Park marks the D-backs' first visit since 2016, and they must improve their record against teams over .500 to strengthen their playoff chances.