Andy Murray's 'lucky charm' daughter Sophia could help him take back the Wimbledon title

The family of Andy Murray today said his baby daughter is his “lucky charm” and could help him take back the Wimbledon title.

As the former champion, 29, continued in his campaign to be crowned winner again, his grandparents said their great-granddaughter Sophia, who was born in February and has been present at some of his games, may be his secret weapon.

Murray’s grandmother Ellen said: “I think she is his lucky charm. And she’s a beautiful one.”

Mrs Murray, 82, and her husband Gordon, 83, live in Kilsyth, Stirlingshire. She said she is “too nervous” to watch her grandson. “I just can’t,” she said. “I turn on the TV, see that he’s started and then I walk away. I’m just too nervous. Then I find out the score at the end.”

She added: “I hope Sophia can help him win it.”

The British number one was facing Australian “bad boy” Nick Kyrgios on Centre Court today in a bid to secure a place in the quarter-finals.

The pair are firm friends — Kyrgios, 21, has joked it was “love at first sight” — and Murray has been one of the player’s most vocal supporters when he has come under fire for his on-court behaviour.

Kyrgios, who earned a code violation during his second-round win over Dustin Brown at the weekend and was then involved in a tense exchange with reporters, said: “When Andy walks in [to the locker room], we see each other, we just give each other a look.

"We joke a lot. It’s just instant banter. We just have a lot of fun.”

Last year’s Wimbledon champion, Novak Djokovic, crashed out of the tournament at the weekend, raising fans’ hopes that Murray could win again, following his victory in 2013.