KEMY Agustien could make his first Premier League start of the season at Newcastle on Saturday, with Ki Sung-Yueng likely to be ruled out through injury.
Ki pulled his hamstring in the closing stages of Swansea City's draw at Southampton on Saturday.
He will undergo a scan to determine the extent of the injury today, but it is extremely unlikely the South Korean will be fit for the trip north.
"Until he has the scan we won't know for sure," said Swansea boss Michael Laudrup. "I think we are looking at around ten days, but we'll see.
"It's bad news but it's part of football. When it is only one or two weeks it is not too bad.
"With the experiences we have had this season with Neil (Taylor) and Kyle (Bartley), it's not that much.
"It's looking like maybe one or two games but we have to live with that. It gives chances to other people.
"Garry Monk has just played two and a bit games so that's why we say people have to be ready because suddenly you can be needed.
"With the number of games we play, you have to be ready."
Agustien returned from injury to come off the bench in the dying minutes of Saturday's match.
That was the Dutchman's third Premier League appearance this term, while his only start came against Barnsley in the Capital One Cup.
Another option open to Laudrup is to recall Danny Graham up front and push Michu back into midfield.
A back problem meant last season's top scorer didn't travel to St Mary's, but he is expected to be at full fitness this week.
Mark Gower is the only other fit senior midfielder in Swansea's squad.
"Danny should be fine in a couple of days, but instead of bringing him to Southampton when he was doubtful I told him to stay home," added Laudrup.
"We will start again from Monday with him, he is working hard and wants to come back.
"He is a goalscorer but he has paid the price because we have played three midfielders and Michu because it has worked well.
"I know it's not easy because he wants to play but I have no complaints about how he is training."