Wiggins, the 2012 Tour champion, missed this year's race - won by compatriot and team mate Chris Froome - after quitting May's Giro d'Italia with a knee injury and chest infection.
The 33-year-old is part of Team Sky's six-man squad for the Polish race which starts in Trentino in Italy on Saturday and ends in Krakow on August 3.
(Writing by Alison Wildey; Editing by Ken Ferris)
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