Will it get messy for Lionel Messi?

Six-time Ballon d'Or winner Lionel Messi told Barcelona FC he wants to leave—on a free transfer—in a bombshell fax on Tuesday that is expected to spark a legal battle over a buy-out clause worth hundreds of millions of dollars. Signalling the end of an era at Barcelona, where Messi, 33, is the record scorer and has won four...