A new era for the Champions League begins tonight with the launch of the new 'League Phase', which replaces the group stage.

Each team will face eight different opponents, with four matches played at home and four away - two more than under the previous format.

In total there are 36 teams in one big league. The top eight will qualify automatically for the knockout stages,the teams finishing in 9th to 24th place will face off in a two-legged play-off to secure a last-16 spot. Teams that finish 25th or lower will be eliminated from European competition entirely.

Villa will be desperate to get their first ever Champions League campaign off to a flyer when they take on Young Boys on Tuesday. Celtic have a kind first fixtures at home to Slovan Bratislava.