Brendan Rodgers has confirmed he is looking to land a midfielder as well as a defender before the transfer deadline.
The Swansea boss had already signalled his intent to strengthen his back four but he has now stressed his desire to give his midfield a bigger physical presence this summer.
"It's about ensuring that we have as much cover as we can get," he told the South Wales Evening Post.
"When the window shuts that will be it until January, and I need to make sure we have enough options in midfield because it is a key part of the way we play.
"We need to have midfielders who can control the game and who can also be combative and win the ball for us. That's important.
"We need stilts for some of our lads in midfield! Seriously, there is a lot more pace and power in the Premier League and that's something I need to consider.
"We need a player who is comfortable on the ball, that is essential, but someone who can also be a bit physical.
"There are players out there, but as always it will be a case of seeing whether we will be able to afford them."
Reports in Holland have linked ADO Den Haag midfielder Jens Toornstra with the Swans while long-time target Henri Lansbury could also be an option.
Injury scuppered a deal for the Arsenal starlet at the start of last season before the 20-year-old went on loan to Norwich.
While Rodgers has already signed Michel Vorm and Jose Moreira this summer, he could add further goalkeeping cover by striking a deal with Gerhard Tremmel.
The 32-year-old free agent has been on trial at the Liberty Stadium since Swansea's tour of Austria last month and Rodgers wants the former Red Bull Salzburg man on board as one of three senior keepers.
"Gerhard is still with us and the chairman is talking to his agent to try to sort something out," added Rodgers, who could let youngster David Cornell go out on loan again should he sign Tremmel.