Swansea City's winger Andre Ayew will miss the clash with his brother Jordan when they host Aston Villa on Saturday because of injury.
Andre has been ruled out of Saturday's Premier League visit of Aston Villa due to an ankle injury.
The 26-year-old Ghana international's clash with his brother's side would have been one of the highlights of the pre-match debate.
However, the turned ankle injury Andre suffered in the match against last weekend’s victory over Norwich has taken its toll and will not clash with his brother Jordan who plays for Aston Villa.
Asked if Ayew would be fit to face Villa, Curtis told BBC Radio Wales: "I would not have thought so. It's probably going to be a couple of weeks.
"He just turned his ankle. He's probably doubtful for the Villa game."
Andre, who has scored eight goals this season, missed Saturday's 3-2 loss at Bournemouth.