Courtney Williams got heated in the middle of the Minnesota Lynx's 87-84 win against the Indiana Fever on Sunday as a shoe cleaner disrupted a live play. The shoe cleaner was on the court during a transition possession for the Lynx, prompting Williams to pick it up and throw it back onto the sidelines."What the f**k is you doing boy," Williams said during the game's broadcast.The incident derailed a fast break for the Lynx that could have resulted in an easy layup, considering they had an advantage during the play.Williams finished with 14 points on 5-of-11 shooting, and 10 assists to lead the Lynx to their second straight win. She also shattered the single-season franchise record in assists, as she now tallies 230.The win solidified the Lynx's hold of the top seed as they improved to 30-7 with seven games remaining in their regular season schedule.Meanwhile, the Fever slipped to the eighth spot with a 19-18 record, a game ahead of the ninth spot.Courtney Williams warns the league about Napheesa Collier's returnThe Lynx-Fever game also saw the return of MVP candidate Napheesa Collier after she missed three weeks of action due to injury. She put up 32 points and nine rebounds in 31 minutes.According to Williams, Collier's performance was a warning for the entire league.“We’re a problem,” Williams said. “We’ve been a problem, but now we’re really a problem.”Collier shot 11 of 16 from the field, dominating the Fever's thin frontcourt rotation.The Lynx lost in last year's WNBA Finals to the New York Liberty. This season, they are one of the favorites to win it all after bolstering their roster midseason by adding last year's Most Improved Player DiJonai Carrington.