Can The Ref Restart The Game After The Final Whistle?

Can The Ref Restart The Game After The Final Whistle? Can the ref restart the game after the final whistle? Referees Are Allowed To Restart Matches According To IFAB rules. Man United were on Saturday, September 26, controversially awarded a penalty after the final whistle to salvage an undeserved 3-2 win over Brighton. United looked