Lopez had a two-run double and finished 1-for-5 in the Indians' 11-9 win in 10 innings.
Acta said he'll continue to look for opportunities to get Lopez some plate appearances.
"It depends on the matchups and who needs a day off the most," Acta said. "You saw [Lopez] before at first base. There could be a day where he's at second base and rest [Jason] Kipnis, or it could be a day where we have him at third. We need to get him in there and get him involved."
Lopez hit .327 in 23 games this spring with two homers and 10 RBIs. He homered against the White Sox in an April 9 start.