By Jacob Leeks Barcelona have put former Premier League stars Andreas Christensen and Raphinha up for sale as they desperately look to slash their wage bill. The reigining La Liga champions have endured a dreadful season and are creaking under the weight of the financial situation. Barca are running the very real risk of falling foul of Financial Fair Play rules. Given their miserable season, which has led to boss Xavi announcing his exit, club bosses are exploring how to bring in reinforcements in the summer. First though, they will need to drastically cut the wage bill. While the likes of Ga…