Goals from Daizen Maeda and Giorgos Giakoumakis took Celtic into the Viaplay Cup final with a victory over valiant Kilmarnock at Hampden Park.Japan international Maeda knew little about it when the ball bounced off his chest a few yards from goal in the 18th minute following an Aaron Mooy free-kick.The holders had two goals chalked off by VAR for offside after the break which kept Derek McInnes' side in touch.However, second-half substitute Giakoumakis – tipped to be on his way out of Parkhead – grabbed a second in the fifth minute of six added minutes to finish off a Killie side who had put in a determined display in the swirling wind and rain before coming up short against the Scottish champions.Ange Postecoglou’s side will face either Rangers or Aberdeen in the final, with that last-four game taking place at Hampden on Sunday.Celtic ran out comfortable 2-0 winners when Killie visited Parkhead in the cinch Premiership at the weekend and there were few outside Rugby Park who gave the Ayrshire side a chance.Killie striker Kyle Lafferty returned from his 10-game ban for being caught using sectarian language on video but he would inadvertently contribute to the opening Hoops goal.However, Danny Armstrong had the Celtic defence in trouble in the opening moments.There was less than 30 seconds played when stretching forward Kyle Vassell just missed a cross from the Kilmarnock winger, who then forced a corner which was headed behind by Liam Donnelly.Celtic, with right-back Josip Juranovic in for Alistair Johnston, were put under pressure again when defender Carl Starfelt gave possession away to Rory McKenzie, who forced a fine save from Hoops goalkeeper Joe Hart with a low drive.The Parkhead side began to assert themselves and