North American esports tournament and production service company Unified has renewed its agreement with Riot Games for the LCS Proving Grounds. As a result of the partnership, the company will once again host circuit qualifiers for Proving Grounds, a North American academy and amateur League of Legends tournament. Image credit: Unified RELATED: LCS teams up with Mobalytics to bolster amateur esports ecosystem The first qualifier is set to commence on May 30th following an Open Qualifier seeding event. The qualifier will give teams the opportunity to claim part of its $12,500 (~£10,200) prize p…