19/10/2015 19:00 v Stoke City
The Swans suffered their first home defeat of the season after Bojan's early penalty earned Stoke a 1-0 victory at the Liberty Stadium.
The Spanish striker's third-minute effort was enough to separate the two sides on a frustrating night under the lights for Garry Monk's side.
Following the international break, the Swans struggled to find their usual fluency against a resolute Stoke defence.
Swansea's best effort came in the second half when Jonjo Shelvey saw a driven effort cannon back off the post, while substitute Gylfi Sigurdsson went close with a dipping long-range effort that fizzed just past the post.
The defeat sees the Swans drop to 14th in the Barclays Premier League with ten points from nine games.
Under the floodlights of the Liberty Stadium, the Swans got off to a poor start as Bojan scored from the spot to put the visitors in front inside three minutes.
The Spanish striker kept his cool from 12 yards to slot the ball into the top corner after he was fouled inside the box by Swans skipper Ashley Williams.
After regaining their composure following their early setback, the Swans posed a threat going forward as Bafe Gomis saw a looping header drop just wide, while Stoke goalkeeper Jack Butland was nearly left red-faced when Andre Ayew almost capitalised on the stopper's badly mishit clearance.
Butland was then called into action to deny a long-range effort from Shelvey, before Glen Johnson dragged wide of the target and Charlie Adam blazed over at the other end.
The Swans continued to probe early on in the second half but lacked the fluency and incisiveness that has been so key to their impressive home form so far this season.
Shortly before the hour mark, Stoke's Marko Arnautovic thought he had doubled the visitors' advantage when he found the back of the net from close range, only to see his effort ruled out for offside, before Shelvey had Swansea's best chance of the game with a rifled effort that cannoned back off the post with Butland beaten.
In an effort to find a way back into the game, Swans boss Monk threw Gylfi Sigurdsson and Ki Sung-Yueng into the fray, replacing Modou Barrow and Jack Cork.
And Sigurdsson went desperately close to making a stunning impact when he unleashed a fierce effort from 25 yards that flashed just past Butland's far post.
With the minutes ticking away and Stoke sitting deeper and deeper, the Swans persisted to huff and puff to find a breakthrough, but despite their intent, the visitors were able to hold firm.
SWANS: Lukasz Fabianski, Angel Rangel, Federico Fernandez, Ashley Williams (capt), Neil Taylor, Jack Cork (Ki Sung-Yueng, 59), Jonjo Shelvey, Andre Ayew (Eder, 80), Modou Barrow (Gylfi Sigurdsson, 59), Jefferson Montero, Bafe Gomis.
SUBS: Kristoffer Nordfeldt, Kyle Naughton, Kyle Bartley, Leon Britton.
STOKE: Jack Butland, Erik Peters, Glenn Whelan (capt), Glen Johnson, Marko Arnautovic (Ibrahim Afellay, 75), Joselu, Charlie Adam (Marko Van Ginkel, 70), Geoff Cameron, Xherdan Shaqiri, Philipp Wollscheid, Bojan Krkic (Stephen Ireland, 79).
SUBS: Jakob Haugaard, Marc Muniesa, Marc Wilson, Peter Crouch.