Champions League: How every team can reach knockout rounds

We're at the halfway stage of the Champions League group stage, and that means the best-performing sides can start booking their places in the round of 16.

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Here we take a look at the state of play across all eight groups.

TIEBREAKERS: — points in head-to-head matches among the tied teams — goal difference in head-to-head matches among the tied teams — goals scored in head-to-head matches among the tied teams — overall goal difference — overall goals scored — overall away goals scored — overall wins — overall away wins — disciplinary points — UEFA club coefficient

Next fixtures, Wednesday: Napoli vs. Ajax, Rangers vs. Liverpool

Napoli: Will qualify with a win/draw at home to Ajax.

Liverpool: Cannot qualify on Matchday 4, but a win over Rangers and defeat for Ajax would leave Jurgen Klopp's men needing at most one point from their final two matches.

Ajax Amsterdam: Victory against Napoli would put them in a much stronger position to qualify. But defeat in Italy, coupled with a win for Liverpool, would leave the Eredivisie side needing to win both of their remaining games to have any chance of qualifying.

Rangers: Still without a point in the competition, Rangers will be eliminated from the Champions League if they draw/lose at home to Liverpool.

Next fixtures, Wednesday: Atletico Madrid vs. Club Brugge, Bayer Leverkusen vs. FC Porto

Club Brugge: Will qualify for the round of 16 with a win/draw at Atletico. They will secure top spot in the group with a victory if Leverkusen-Porto is a draw.

FC Porto: Victory in Germany would put them in a stronger position, but the battle for second place in Group B is very tight, and Porto have only one home game left — against