Complex sentence: If he gets on the team, their father might be able to realize that the world isn't as racist as it used to be.As he gets on the team they hide the fact that Gattu is on the team, but their father eventually finds out.
Split into simpler sentences: If he gets on the team, their father might be able to realize that the world isn't as racist as it used to be. They are able to hide the fact that Gattu is on the team, but their father eventually finds out.