And Gilberto Silva, the former Arsenal midfielder, says that the 25-year-old wants a move to the Premier League.
"At the moment we are open for the market and, when you see the whole market in football, the Premier League is one of the targets," he told Sky Sports.
"We had inquiries for him in the last transfer window, but it didn't happen. The Premier League is his preferred destination.
"He's doing so well. At Shakhtar, at the moment and in the last transfer window, they relied too much on him. He was doing a great job for the club. Let's see for the summer.
"I've been telling him to just concentrate on his job. That's what he needs to do. Where he plays now, the chance will come.
"It's about not losing his focus. It's so easy to get lost. You hear all the time some rumours, and sometimes you're not sure, and you get lost in all the messages."
Gilberto, who won the Premier League and two FA Cups at Arsenal, retired in 2015 and says he is enjoying the challenge of working with Fred and other younger players.
"Since I started working with Fred he's been a big challenge for me as well, because it wasn't my job," the 41-year-old said. "I didn't work with this job before. But it's been nice because it's like being his mentor from the outside, not exactly the agent.
"I don't have the experience of some of the agents but I have some partners I work with. It's about mentoring him. It's about making an analysis and saying to him 'you remember this situation, maybe you can correct this'."