Newcastle boss Eddie Howe admits Paul Dummett and Matt Ritchie's futures could depend on European football qualification.
Both players will come off contract at the end of next month.
Newcastle are currently qualified for the Europa Conference League, but will drop out if Manchester United win the FA Cup on Saturday.
"The players that you're talking about [Dummett and Ritchie] are just incredible characters," Howe said. There's a slight doubt over their futures, but we go to Australia with them.
I think European qualification might potentially have a bearing on what happens with their futures. What I will say about Paul Dummett and Matt Ritchie is that they've just been incredible servants to the football club. I absolutely love their characters and what they've given."