London: New Zealand captain Brendon McCullum believes his Australian counterpart Steve Smith showed immaturity by not withdrawing his appeal against England batsman Ben Stokes.

Stokes left his crease after driving a ball back to bowler Mitchell Starc, who collected it in his follow through and threw at the striker's end in an attempt to run him out in the second One-Day International (ODI) at Lord's on Saturday. However, Stokes stopped the ball with his hand as he turned and dived to regain his ground.