New Delhi: Confident about the trio of Shiva Thapa, Vikas Krishan and Manoj Kumar, stalwarts of Indian boxing feel the three are capable of producing a historic Olympic performance in Rio despite the pressure they are facing. File picture of Shiva Thapa. Beijing 2008 bronze-medalist Vijender Singh, London 2012 bronze winner M C Mary Kom and Beijing quarter finalist Akhil Kumar — the three names which took Indian boxing to unprecedented heights...