Mosaic Stadium. (980 CJME file photo) Showing proof of vaccination to attend a Saskatchewan Roughriders game this season would be a small step that would protect the health-care system and those unable to get inoculated against COVID-19, says the NDP. Speaking to reporters outside Mosaic Stadium on Wednesday afternoon, Regina Elphinstone-Centre MLA Meara Conway warned that with tens of thousands of fans expected to pack the stadium this summer, the games pose a risk of becoming superspreader events. “These superspreader events risk putting additional strain when, again, everyone is hoping — particularly our hard-working frontline health-care workers — that the worst of this is behind us,” Conway said.