"It would be unfair to him," Acta said, "for me to just give you a flat-out evaluation of him yet. He's shown some good bat-to-ball ability and is able to handle a fastball. ... Defensively, I haven't seen him long enough to make an assessment. But he has handled himself well."
Entering Wednesday, Phelps was hitting .207 with one home run, one double, one triple and five RBIs through nine games for the Indians. He was promoted from Triple-A Columbus on June 8 to take over as the Tribe's primary second baseman against right-handed pitching.
The 24-year-old Phelps got off to a slow start, hitting just .063 (1-for-16) over his first six games with the Indians. Since then, though, the switch-hitting infielder has hit .357 (5-for-14) in his past three games. On Sunday, Phelps belted a three-run, walk-off homer in the 11th inning of a 5-2 win over Pittsburgh.
In the field, Phelps has made two errors in 32 chances.
"He's in a good groove right now," Acta said. "He's been squaring the ball up very good. Hopefully, his confidence continues to grow. I was very happy to see him hit the ball the other way [on Monday] because I hadn't seen that yet."