An e-sports team sponsored by pornographic website YouPorn is in hot water with the Electronic Sports League over its sponsorship.

Team YP received an email from the ESL prohibiting it from competition, which cited a rule barring sponsorships based on "adult/mature themes and products."

The team offered to rebrand, changing its name away from the direct "YP" reference, but the ESL declined to accept.

The ESL's official statement is as follows:

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 is the only team with controversial sponsorship of this sort, although teams sponsored by the gambling industry (which tends to operate under tighter government regulations than the pornography industry) are allowed to compete.

Aside from its name, the team looks and functions just as any other e-sports team does, and includes over 25 players from around the world.

It won the sponsorship in 2014, and has competed in tournaments under the Team YP name since then in games like Dota 2, Counter-Strike, and Street Fighter.

Though the ESL is working on ways to reinstate the team, it seems unlikely, given its associations with major broadcasters and other corporations, that Team YP will be able to compete with its current sponsorship.