Nikki Bella has been spotted wearing a walking boot following the ankle injury she suffered during Friday's SmackDown, raising concerns about her availability for WrestleMania 42. ​ Nikki was seen alongside Brie Bella while recording a future episode of The Nikki and Brie Show with guests Nattie Neidhart and Becky Lynch, plus a surprise appearance from Cody Rhodes. The walking boot represents the first clear visual indication of how serious the injury may be. ​ PWInsider confirmed the nature of the injury: "Bella suffered an ankle injury. The belief among those we spoke with is that Bella rolled her left ankle during an exchange with Charlotte Flair." ​ Nikki went down during a post-match brawl on SmackDown and did not return to the ring for the remainder of the segment. A doctor was checking on her for the rest of the segment. ​ No official word from WWE or Nikki Bella on the severity or expected recovery timeline. WrestleMania 42 takes place April 18 and 19 at Allegiant Stadium in La...