Switzerland winger Xherdan Shaqiri has tested positive for COVID-19 just a day after the 28 year old who plays for Liverpool rejoined the national team for the first time in over one year.
Shaqiri who last featured for Switzerland in the Nations League finals in June last year had arrived at the team hotel on Monday afternoon ahead of a friendly match against Croatia at home.
The SFV said the player has been put in isolation as they clarify how to proceed with the local health authorities.
Contracting covid-19 is a major blow to the player who has fallen out with Liverpool where his team mates, Sadio Mane and Thiago Alcantara also tested positive last week.
Shaqiri only featured in seven Premier League games last season, starting two of them but has only featured in game in the current campaign in the Carabao Cup.
One year ago, he requested to be left out of the national duty to concentrate on his club football and had not been included since then until this recall.
Welbeck was released by Watford after they were relegated from the Premier League and the club had to cut their wage bill. The 29-year-old who was earning £100,000 a week at the club.
While Wilshere was let free by West Ham United where he had stayed for two years but was sidelined by injuries.
Wilshere and Welbeck can sign for any club at any time since the transfer window only closed for intra-Premier League deals and international transfers but second tier Championship clubs can still trade until Oct. 16.