Lee Hendrie's second goal in two games helped Stoke come from behind against Sunderland, but the win was marred by a broken leg to fellow loanee Rory Delap.
Delap, on loan from the Black Cats, had made it just 11 minutes into his Stoke debut when he crumpled in a heap after a challenge by Robbie Elliott.
That upset the hosts' rhythm and Dwight Yorke punished them on the turn.
However, Hendrie's neat low finish levelled matters and Vincent Pericard's bullet header sealed the fightback.
Stoke manager Tony Pulis:
"It's devastating for Rory. His tibia and fibula have been broken and I don't know how long he'll be out.
"All of my players came across and saw it and it took the steam out of them. I felt some had it on their minds.
"It's a pity Rory won't be around for a while as having him and Lee Hendrie on the wings gave us a great balance."
Sunderland boss Roy Keane:
"That's the sad part of football. It was accidental and I think Robbie Elliott got part of the ball before he connected with Rory.
"My heart goes out to him and I wish all the best to him and his family from everyone at Sunderland.
"It was a poor result but on another day we would have got something out of the game."
Stoke: Simonsen, Hoefkens, Higginbotham, Duberry, Griffin, Delap (Chadwick 12), Russell, Diao, Hendrie (Brammer 79), Sidibe (Fuller 68), Pericard.
Subs Not Used: Bangoura, Wilkinson.
Goals: Hendrie 50, Pericard 54.
Sunderland: Ward, Nosworthy, Varga, Danny Collins, Robbie Elliott (Clarke 46), Liam Miller, Leadbitter, Whitehead (Brown 69), Wallace (Murphy 69), Connolly, Yorke.
Subs Not Used: Alnwick, Lawrence.
Booked: Robbie Elliott, Nosworthy.
Goals: Yorke 28.
Ref: P Walton (Northamptonshire).