Hull City's promotion to the Premier League is under threat due to a £6m funding crisis. The club must raise the money in player sales before the end of the month or face Financial Fair Play penalties. Sources close to the club claim that several players, including Mason Burstow, are up for sale. Burstow spent last season on loan with Bolton and scored 12 times in 53 appearances. He is one of several players who could be sold to help the club meet their financial obligations. The club's sporting director, Jared Dublin, and head of recruitment, Martin Hodge, are pushing for the money to ensure the club is not penalized by future points deductions. Promotion to the Premier League is worth around £200m, but the club is faced with a short-term problem before they can tap into those riches and plan for the top flight. Tigers owner Acun Ilicali has expressed confidence that the money will be raised in time. He told the Hull Daily Mail that the club has overspent and must sell some players before July 1. Ilicali said that the club has some players who know they will not be able to play with them next season, and that they will work on solving the problem. Wanderers are interested in signing Mason Burstow, but the club's pursuit of Johnny Kenny from Celtic has been complicated by a knee injury. The Glasgow club are expected to be busy in the transfer market this summer, with as many as 10 new players expected at Parkhead.