From the Echo:
http://www.liverpoolecho.co.uk/sport/football/football-news/how-long-could-liverpool-fc-7325933
According to Article 136 of the 2011 Fifa Disciplinary Code, it states: “If the infringement is serious, in particular but not limited to doping, unlawfully influencing match results, misconduct against match officials, forgery and falsification or violation of the rules governing age limits, the associations, confederations, and other organising sports bodies shall request Fifa to extend the sanctions they have imposed so as to have worldwide effect.”
This is the crucial point. If Suarez's infringement is considered serious enough and he is banned from international competition by Fifa, then both the FA and Uefa will be able to ask Fifa to extend the sanctions already imposed, to have a worldwide effect.
The FA and Uefa would apply individually to ban him from their respective competitions – the Premier League and Champions League respectively – but it would be under the jurisdiction of Fifa to accept that.
So, it is possible any ban would only apply to international fixtures, but the FA and Uefa could ensure he is also banned for Liverpool too.
However, Article 136 continues: “If the judicial bodies of Fifa discover that associations, confederations and other sports organisations have not requested a decision to be extended to have worldwide effect, these bodies may themselves pass a decision.”
This would suggest that if the associations elect not to appeal to Fifa, the world governing body would still be able to extend that ban from international football into a global ban of its own accord.
While Fifa are likeliest to impose a global ban if requested to – and therefore see him unavailable for Liverpool – they may also choose to do so themselves.
If that happens, Suarez must have previously had the opportunity to “state his case”, as pertains to Article 137 of the 2011 Fifa Disciplinary Code: “The request for sanctions to be extended will be approved if:
a) the person sanctioned has been cited properly;
b) he has had the opportunity to state his case (with the exception of
provisional measures);
c) the decision has been communicated properly;
d) the decision complies with the regulations of FIFA;
e) extending the sanction does not conflict with public order and accepted standards of behaviour.”