Southampton are said to be discussing midfielder Shea Charles going to Celtic in a loan deal that would enable Matt O'Riley to come back to England.
They may allow the midfielder to go on the loan deal with an option to buy as the two clubs are already in negotiations.
Per The Sun, the Saints are hoping to sign O’Riley from Celtic, with Charles possibly going the other way.
O’Riley, who is only 23, played for Saints boss Russell Martin at MK Dons earlier in his career.
He scored 19 goals and managed 15 assists for Celtic in all competitions last term.
Charles, who is a former Manchester City youth captain, is likely to head to the Hoops.