As confirmed by the WWE UK Twitter:
Reigns wrestled his first match following his second battle with leukemia at Fastlane this past weekend. He was scheduled to wrestle his first singles match on Monday Night Raw just one night later but instead WWE ran an injury angle that led to a Dean Ambrose match.
Previous reports indicated Reigns would start working a full time schedule — meaning house shows in addition to television and pay-per-view events — as soon as May, and this announcement would seem to confirm those reports. It’s possible he could start working full time sooner, of course.
Either way, the good news continues for Reigns (and the rest of us).