According to The Daily Mail reporter Jack Gaughan, UEFA rejected Manchester City's appeal against Walker's suspension.
Walker was sent off for playing Andre Silva in the Champions League group stage between Manchester City and Red Bull Leipzig last December, and was later suspended for three games, he will miss two legs of the quarter-finals, and if City advances, he will miss the first leg of the quarter-finals.
Before the first leg of the Champions League round of 16 with Sporting Portugal, City appealed UEFA for Walker's penalty. Journalist Jack Gaughan's latest news said that UEFA rejected Manchester City's appeal and Walker will also suspend 2 games in the Champions League.
(Luke)