What happened: Salas made his major league debut Wednesday. He went 0-for-4 with two strikeouts.
Why it matters: September brings opportunities for debutants, long-serving minor leaguers and call-ups awaiting their first appearance.
By the numbers: 0-for-4, 2 strikeouts in his debut.
What to watch: Watch for Salas' next appearance as September roster opportunities continue.