The 27-year-old, underwent hamstring surgery in May and is set to miss the start of the new season.

The Czech Republic international said, "It will still take some time (before I start full training), although the recovery process is going on fully and in the last week I was able to play with the ball after a long time," he told CTK.

"It has still been just light kicking as I can't kick properly. I have to be patient and wait for the moment when I am absolutely fit, not to rush anything."