Sage Open is able to consider manuscripts that have been posted on preprint servers.

Please keep in mind that Sage Open normally has a double-anonymized peer review process and that by posting your manuscript on a preprint server, your manuscript and its author list may be discovered by reviewers. This will not prevent Sage Open from considering your manuscript, but please make sure you are comfortable with reviewers possibly discovering your identity before posting your preprint online.

In order to be considered, the manuscript cannot have been previously published and the authors should retain the copyright.