Protein will help your cricket.
It's not as important as technical ability, physical fitness and tactical nous, but it has a role. As you are going to eat protein anyway, you may as well make the most of what it can do for you on the pitch.
The good news is that it's not difficult.
There's no weighing of chicken breasts and measuring out macro nutrient breakdowns. Sure, you can do those things if you have a specific reason. For the average cricketer you simply need to dial into the basics and get on with playing God's own game.
Here is a quick and dirty summary of the stuff you need to know about protein for cricket.