Swansea coach Alan Curtis expects Alfie Mawson to be the last player the club sign before the transfer window closes.
The Barnsley defender is close to a switch to the Liberty Stadium.
"I don't think there will be more new signings. Obviously the plan was to bring another centre back in," Curtis told BBC Wales Sport.
"If there was a bonus of getting another forward, great, but as far as I know, that is all of the deals concluded."
Mawson will have big shoes to fill after Swansea reluctantly sold captain Ashley Williams to Everton after eight years with the club.