By Jude Summerfield Barcelona play their final home game of the 2023/24 season when they entertain Rayo Vallecano against a backdrop of intense speculation surrounding the future of manager Xavi. The legendary midfielder’s U-turn over his decision to quit at the end of the season came after a major upturn in results, but his words in a recent press conference are said to have angered club officials like president Joan Laporta. Reports now claim Xavi could be sacked in the summer, but first he has two more games this term to preside over. Second place in La Liga is almost wrapped up, with Giron…