"I think that's all a part of the evaluation right now. It's hard to say," Sandberg said. "With the team now, the way it has the left-handed bats in the lineup, going forward, I think a right-handed bat like his really doing well and dominating the left-handed pitching. ... It's a good start for him. Whether that can be expanded on remains to be seen.
"There's an opportunity there, no question about it."
It took some time for Ruf to get into a groove after a left wrist fracture hampered his progress in June. Since being recalled on July 22 until Aug. 10, Ruf hit .143 in 12 games, including six starts. But in his four scattered starts since, he's hit .583 with two doubles and a homer, raising his season average 127 points to .256.
Ruf is 84-for-327 (.257) for his career in the Majors, and 36 of those hits have gone for extra bases.
Erik Bacharach is an associate reporter for MLB.com. Greg Johns is a reporter for MLB.com.