Fiorentina forward Mario Gomez has admitted that he is growing frustrated with his recent injury problems.

The German international, who has not played in almost four months after damaging tendons in his knee in September, has said that he is going through the most difficult period in his career.

"As you can imagine, it's not an easy situation for me," he wrote on his Facebook page. "With Pepito (Giuseppe Rosssi) now injured, it's nothing short of tragic. I've got my fingers crossed for him and wish him a speedy recovery.

"He is one of the best strikers in the world and we need him, just like I need to be playing football again now at long last. I don't know if I've ever had such a difficult phase in my career. Two months have become almost four, and it's starting to get on my nerves.

"The coach, physios and doctors have been putting a great deal of effort and passion into supporting me. It is not always easy to work with an impatient player like me, who is just desperate to get back out onto the field, to give something back for what has been given to me by the fans every day here in Florence."

Gomez joined Fiorentina from Bayern Munich in July 2013.