Murder at Cricket pitch

Aspring Cricketer Ranjan gets murdered inside the stadium and one of the players from his team Gaurav gets arrested. A massive fight took place between Gaurav and Ranjan in the dressing room as Gaurav got run out because of Ranjan. Gaurav and Ranjan both wanted to get selected by selectors to play in International Cricket. Sanjana reveals in the court that she saw Gaurav beating Ranjan with the bat. Who killed Ranjan ?