The young attacker's agent confirms that Jose Mourinho's side is competing with the Turkish giants to pry him from Sporting Lisbon, with offers starting at 8 million euros.
Newspaper speculation has repeatedly linked the 18-year-old, who previously declared that he would hold discussions over his future after the U-20 World Cup, with a move away from the Portuguese Liga side this summer.
Bruma was part of the Portugal team that topped its group before exiting at the hands of Ghana in the last 16 and scored five goals in his four appearances at the tournament.
"I was in charge or presenting offers to Sporting," the youngster's agent, Catio Balde, told Antena 1. "There are offers from foreign clubs, from Chelsea and from Galatasaray, worth 8 million, that could reach 12 million. From this moment on, considering that he is a highly coveted player, it is possible that more offers will arrive, because I know that several clubs were waiting for the best moment to make a move.
"Right now, Bruma's mind is not on Sporting."