Skysports.com understands that Stoke are closing in on West Ham defender James Collins.
Potters manager Tony Pulis has declared his intention to make five more signings before the transfer window shuts at the end of August.
25-year-old Welshman Collins looks likely to be the next arrival after the two clubs agreed a fee.
It is believed that Stoke even want to push the move through before Wednesday's game away to Liverpool.
Collins has become a regular member of the West Ham side in recent times and started the 2-0 victory over Wolves on the opening day of the season.
The Hammers are understood to have spoken to Stoke about the possibility of taking Ryan Shawcross to Upton Park in part-exchange but this part of the deal is not expected to go ahead.