Sizemore hasn't played since May 16 when he injured his knee and had microfracture surgery in June. He will start by getting two at-bats as the team's designated hitter on Sunday against the Diamondbacks.
"Hey, we've got to sell some tickets," Acta joked to reporters, including Paul Hoynes of the Cleveland Plain Dealer.
Sizemore is expected to run the bases again on Friday, although Acta declined to say when he would start sliding. Sizemore told MLB.com he expects to slide Friday or Saturday.
"I'm excited to get back on the field," he told MLB.com. "Everything else has felt good. [Sliding] is just the last progression."
The Indians open the season on April 1 at home against the White Sox.
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