It follows a heavy defeat to Bayer Leverkusen.
Celtic are looking to put their midweek European hammering from Bayer Leverkusen behind them.
They're away to Aberdeen in the Scottish Premiership and are sixth in the table ahead of the game.
That match has just kicked off.
Champions Rangers host Hibernian from 3-o'clock.
A win for Stephen Gerrard's side would see them go top of the table.