The Braga forward is attracting a lot of attention
Chelsea are reportedly one of a number of clubs who are currently targeting Trincao.
The Portuguese winger caught the eye at the under-19 Euros this summer, as his country emerged victorious.
Trincao finished the campaign as joint top scorer on five goals.
As a result, A Bola claim he is being pursued by multiple top sides, including Chelsea.
Their report states Juventus made a €7m offer for his services, but the club are holding out for €12m.
Chelsea, Sevilla and Monaco are the three latest sides to enter the race for his signature, with RB Leipzig, Lyon and Roma already known to be interested.
His current release clause is set at €15m, though this will rise to €30m by the end of the month.