Chelsea fans are "upset and confused" that a website part-owned by Chelsea chairman Todd Boehly is offering tickets for the club's FA Cup semi-final with Leeds at Wembley Stadium at hugely inflated values. Vivid Seats, an American resale platform in which Boehly is a minority shareholder, has ticket listings for the semi-final clash with Leeds on 26 April at Wembley priced between $200 (£148) and $2,308 (£1,705). The prices far exceed face value - between £30 and £150 - and the listings have been online since before tickets were made available to Chelsea season ticket holders via the club on Friday morning. Over 100 ticket listings were displayed on the website, in all four stands of the stadium including areas designated to both Chelsea and Leeds fans, and in hospitality lounges. Prices are determined by sellers on Vivid Seats, which earns money from each sale.…