Rocketleaguebattles.com is a SCAM
They will steal your credentials. They are based in Russia. Just had someone add me and say they wanted to play in a tournament. He sent me a link to Rocketleaguebattles.com and i attempted to login. Immediately i got a warning from Steam about an attempted login and the IP address. They are just pulling the code from the ESL page and changing the login structure. ESL Should shut them down.