What happened: The Boston Red Sox placed starting pitcher Ranger Suarez on the 15-day injured list with a groin strain. The transaction removes a starter from the active roster during the club's recent winning streak.

Why it matters: Boston recently won five consecutive games, climbing within three games of a wild-card spot. Losing a starter tests the organization's pitching depth as they attempt to reach the .500 mark.

What to watch: The club must announce a corresponding roster move to fill the vacancy in the starting rotation. Suarez will be eligible to return from the injured list once the 15-day minimum requirement is met.