Shaqiri does have a release clause but the exact details are unknown at this stage, though the fee is believed to be higher than the widely reported £12m.
LIVERPOOL are in discussions with Stoke about a deal for winger Xherdan Shaqiri.More news: Trump Releases Letter from Kim Jong
Stoke, who were relegated last season, are in pole position to sign Wilson, also a winger, but there is also strong interest in the 21-year-old, who signed a five-year contract this week, from Swansea City and Aston Villa.
With Switzerland back from the World Cup after being eliminated by Sweden in the Round of 16, negotiations can progress and Shaqiri "has been considering his options since his involvement in Russian Federation was ended".
Liverpool may be able to sweeten any deal by offering a player on loan. Shaqiri could be signed in time to play a part in that trip.