Kozak was forced to endure a follow up procedure to the problem, which meant an 18 month absence from the game and he’s described the difficulties he went through mentally during that period.
“Sometimes it was hard to stay positive. Sometimes it was really hard. The hardest moment was having to have the second operation,” he told avfc.co.uk.
“I had to keep going forward to try and stay positive and do my work to come back fit without any problems.”
The effect of a new signing
Aston Villa manager Tim Sherwood will be delighted to get Kozak back for the new season because it will have the cliché effect of the player being like a new signing.
That’s important considering the calibre and quality of players who have left over the last couple of weeks.
With Christian Benteke having departed to Liverpool, Sherwood has been left with a difficult situation in terms of what he does in terms of replacing the Belgian.
All clubs now know that Aston Villa have a bit of money sitting in the bank, which will make achieving a simple deal for his replacement difficult.
Kozak is someone who could play a key role over the first few weeks of the new Premier League season, while the manager continues his hunt for attacking reinforcements.
Most important thing for the player
Arguably, the most important thing for Kozak is that he can stretch into the first few weeks of competitive action, get some game time and do well but most importantly, stay fit and clear of any further problems.