Stoke City chairman Peter Coates says the six month loan signing of keeper Lee Grant has turned into a "great story".

In his first taste of the Premier League, the 33 year old has conceded only twice in the Potters' current four-game unbeaten run and kept back-to-back clean sheets.

"He's put in some great performances," Coates told BBC Radio Stoke.

Grant's impact - in only four appearances - has especially pleased Coates given the keeper's lack of top-flight experience, something that made his signing a bit of a surprise to some.

"Yes it did, me included," said Coates. "But he's done remarkably well.

"He's come in and had an opportunity to play at a higher level and he must be as delighted as we are - it's a great story."