Former Team Impulse mid laner Xian "XiaoWeiXiao" Yu has been banned from all Riot-affiliated League of Legends competitions until Feb. 21 2016, Riot announced today in a competitive ruling on their website.

The ruling comes following a series of allegation on reddit that XiaoWeiXiao was ELO boosting accounts, an activity which is in violation of Riot Games' Terms of Service. XiaoWeiXiao has been suspended pending investigation since July 21.

According to the press release, Riot's investigation revealed that not only had XiaoWeiXiao boosted one account, he was "in talks to boost further accounts, and was also negotiating the sale of an unlocked account granted to LCS pros."

The LCS accounts have all in-game content unlocked, including champions and skins, and are awarded to players for participating in the competitive league. XiaoWeiXiao had previously admitted to the ELO Boosting, but the sale of the unlocked account was only discovered after the investigation. Despite initially denying it, XiaoWeiXiao eventually confirmed the attempted account sale.

"After a second interview with XiaoWeiXiao where he was presented with the evidence [of the sale], he admitted that he had been attempting to sell an account to the same party who paid him to Elo boost." said Riot.

Riot has suspended numerous pros in the past for similar offences. According to Riot, they took the proper steps to educate professional players on the penalties for Elo boosting and XiaoWeiXiao was no exception.

"We have repeatedly stressed to players that Elo boosting is impermissible and harms other players...Pros, including XiaoWeiXiao, are aware that Elo boosting is a violation of league rules and he went ahead despite that knowledge."

When handing out their ruling, Riot took into consideration the fact that XiaoWeiXiao had, other than a few misrepresentations of the facts, cooperated fully with their investigation. The Elo boosting activity earned XiaoWeiXiao a six month suspension, while the attempted account sale added an additional month. This penalty was calculated retroactively to his initial suspension date of July 21, hence the February eligibility date.

Although initially involved in the investigation, Team Impulse general manager Alex Gu was found to have no direct knowledge of the incident and will receive no penalties. The same goes for Team Impulse jungler, Lee "Rush" Yoon-jae, who was seen duo-queing with the Elo boosted account in question. Rush was confirmed to have no knowledge his teammate was Elo boosting the account, and therefore will also not receive any punishment for his connection to the case.

Team Impulse is currently set to play Counter Logic Gaming in the NA LCS semifinals on Aug. 8 after sweeping Team Dignitas in last weekend's quarterfinals.

Nic Doucet is a News Editor for theScore eSports. You can follow him on Twitter.