Update: A representative for the ESL provided the following statement to IGN:

"Advertising pornography is not legal in the markets we operate in, and the vast majority of partners we’re working with have strict “no drugs, no alcohol, no pornography” rules that we’ve contractually taken on board. These aren’t new rules, but ones that have been in our rulebooks for a long time. We have spoken to Team YP manager earlier this year and in that conversation we’ve explained the situation and rules in detail, and offered to look for potential alternatives in a bigger group. At the same time, we’re consulting with our legal teams about this. We will inform the team and the management as soon as we have any updates.

Team YP hasn't played in any of our professional leagues (ESL One, IEM, Pro League), and this wasn't a clear cut case from the beginning. The rule has been put in place and enforced since more than a year and a half ago, and there are more examples of situations where Team YP has been either asked to change name or warned they won't be able to play/qualify for event under the Team YP flag. However, discussions with the teams have been going on for a long time so it is not like we just decided to enforce it now, they just made it public now."

Original story follows:

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"Advertising pornography is not legal in the markets we operate in, and the vast majority of partners we’re working with have strict ‘no drugs, no alcohol, no pornography’ rules that we’ve contractually taken on board. These aren’t new rules but ones that have been in our rulebooks for a long time. We have spoken to Team YP manager earlier this year, and in that conversation we’ve explained the situation and rules in detail and offered to look for potential alternatives in a bigger group. At the same time, we’re consulting with our legal teams about this. We will inform the team and the management as soon as we have any updates."

The Electronic Sports League has banned Team YP, a pro gaming team from Europe.Team YP's main sponsor is adult website YouPorn, which breaches an ESL policy which prevents teams from being sponsored by organizations which are "widely known for pornographic … or other adult/mature themes and products."According to VentureBeat , Team YP offered to re-brand several times, however the offers were turned down and YP are no longer allowed to participate at ESL events.An ESL spokesperson gave the following statement to GamesBeat:Team YP manager Claire Fisher said the ban, "in spite of Team YP operating as a completely SFW brand, clearly separated from any adult content, seems unfair to say the least.” The team has been sponsored by YouPorn since 2014.Last year there was controversy in the ESL over performance enhancing drugs , which led to new drug tests being mandated

Matt Porter is a freelance writer based in London. Make sure to visit what he thinks is the best website in the world , but is actually just his Twitter page