Stoke have continued their spending spree with the signing of Danny Collins from Sunderland.
The Potters have been in talks over a deal for the defender for a few days and the transfer has now been completed on deadline day.
Collins has joined the club for an initial fee of £2.75million, which could rise to £3.5million, after agreeing personal terms and passing a medical.
Having already brought in Diego Arismendi, Robert Huth, Tuncay and Dean Whitehead, Pulis is delighted to have bolstered his squad further.
"Danny has been Sunderland's player of the year for the past two seasons which speaks volumes for the impact he has had at that level," Pulis told Stoke's official website.
"He can play at left-back or centre-half which gives us further options along the back four."
Collins is looking forward to the challenge of trying to help Stoke maintain their fine start to the season after a five-year spell with the Black Cats
He said: "One of the great things about this move is that I will have some familiar faces around me with so many ex-Sunderland players already here. Why, the club even plays in red and white stripes as well.
"All this has happened so quickly because only a few weeks ago I was captaining the Sunderland side in their pre-season friendlies, but Steve Bruce made it clear that he was going to bring in new faces and he couldn't guarantee me a place.
"Therefore, when I was made aware of Stoke's interest, I thought it was a good time to move on and seek a fresh challenge.
"In many respects, the two clubs are alike in that they have big ambitions to finish in the top half of the table this season."