I am amazed at the number of people in this thread that seem to know him intimately!
Please learn from the Rodri example and look back at the number of people who were scornful of his ability, called him Plodri, then damned him with faint praise (he needs to do that every week), then reluctantly accepted he had had a few good games, and now, finally, pronounce him Godri.
Grealish is a very talented player and has done quite well, getting better as the season has gone on, and gradually settling in to one of the world's best teams.