Mancini went 1-for-5 with a three-run double in Sunday's 8-6 loss to Boston.
Mancini gave Baltimore a short-lived lead with his three-run double in the seventh inning. He'd driven in just 11 runs in his previous 49 games since his last multi-RBI game July 11. Since the start of September, Mancini has gone 10-for-34 (.294) with five RBI and five extra-base hits. The 29-year-old owns a .778 OPS through 571 plate appearances.