Sigurdsson, 26, has been the driving force behind Swansea's push towards Premier League survival, and he scored yet again in the 2-2 draw against Stoke City on Saturday afternoon.
That took his tally to six goals in his last ten games, with some truly exceptional form from the Iceland international ahead of a historic European Championships campaign for him and his country.
Sigurdsson's superb performances in South Wales will once again bring up the possibility of him moving on to join a bigger Premier League club, much like when he enjoyed a fruitful loan spell with the Swans in 2012, leading to a move to Tottenham Hotspur.
The playmaker hit just 13 goals in 85 games for Spurs, and he was left frustrated having been mostly shoved out to the left hand side under Andre Villas-Boas and Tim Sherwood, before being allowed to head back to Swansea by current Tottenham boss Mauricio Pochettino, in a deal which saw Michel Vorm and Ben Davies sign for Spurs in 2014.
Now though, pundit Ian Wright has told the The Sun that he is still surprised Tottenham let Sigurdsson go, and even suggested that it was something of a mistake to let the ten-goal playmaker leave White Hart Lane, as he feels Sigurdsson would fit well in a title-chasing Spurs side.
"He's consistent," said Wright. "Even when he's not playing well, he's still in and amongst it, doing stuff, nicking a couple of free kicks and linking play. I was very surprised to see him leave Spurs, because you look at him now and you can see that - as much as Spurs seem to be getting it going now - he would still fit in there," he added.
Do you think Spurs made a mistake letting Sigurdsson leave?