It is in reference to the catch taken by baseballer Willie Mays in the 1954 World Series, who caught a ball that was over his head to help the Giants win.

Cisco kid: Jarryd Hayne (left) rushes during a pre-season game with the San Francisco 49ers. Credit:Getty Images

The former Parramatta Eels fullback again had Twitter trending in Australia and the US with another eye-catching performance. It was first appearance at his new home at Levis Stadium against Dallas.

Hayne was asked in an on-field interview if there was anything he didn't do."I don't play quarterback," he joked. "No, I'm just grateful for the opportunity, wherever I get the opportunity on the field I'm there. I am still getting used to lowering my pads and running off the right blocks. I am just trying my best every week and studying and really enjoying the process.

"I am over here having a crack and doing my best."I'm still a long way off from where I want to be. I want to go into games confident that everything I do, I'm comfortable with."People might be surprised in how I'm going but I've got confidence in my ability."