Ibrox side Glasgow Rangers get their competitive season underway on Thursday night.
Kranjcar was brought to Rangers last summer, and there was a great deal of anticipation about his arrival.
However, the Croatian has barely made an impact for the Light Blues, due to injury.
Kranjcar tore his cruciate ligament in October, before he had really made an impression in a Rangers shirt.
With Caixinha bringing in a whole host of new players this summer, there are now some doubts over where Kranjcar fits in.
But the 32-year-old is now confident that he is fit enough to start again, and he is eager to be given a chance to prove his quality.
“I hope I am going to get a chance to prove myself again because for me this is early stages after being out for so long and I have to prove myself every day and in every game,” the former Tottenham, Portsmouth and Queens Park Rangers man said.
“It’s up to me to prove to my teammates and my manager that I am still good enough to play.
“It’s the manager’s decision as to whether I start, I have been working towards that and I honestly feel physically good and that I can compete. If I didn’t feel that way I wouldn’t be sitting here.”
Kranjcar has featured in all three of Rangers’ pre-season friendlies to date, which should encourage him that he is firmly in Caixinha’s plans.
Rangers kick off their competitive campaign on Thursday night, when they take on Progres in the Europa League.