The women's under 66kg grand prix at Polaris 23 is now complete, as the final two competitors have joined the tournament. The first to join was Joanna Dineva, who had to fight tooth and nail to earn her spot in the tournament. Dineva had to defeat five other women at London Grapple on February 4th in order to win the latest edition of Polaris Contenders. She's a tough competitor who has only recently established herself at the highest levels of the sport, winning gold at the IBJJF European Championship at the beginning of the year. Although Dineva enters Polaris 23 as the biggest underdog at the tournament, she's more than capable of upsetting the balance and defeating some of the more experienced competitors. Dineva should have completed the division at Polaris 23, but unfortunately Jaidyn Mueller was forced to withdraw from the event due to injury. Stepping in to replace her is Fight Sports black belt Maggie Grindatti, who will be competing on the Polaris mats for the very first time. Grindatti is also an IBJJF European Champion and has won medals at both the Pan Championship and World Championship in the past.