Robert De Niro, 77, wears leg brace as he is spotted for first time since ‘excruciating’ injury on set of new Martin Scorsese film

'I tore my quad somehow,' he said. 'It's just a simple stepping over something and I just went down. The pain was excruciating and now I have to get it fixed.

'But it happens, especially when you get older, you have to be prepared for unexpected things. But it's manageable.'