Andy Murray remains committed to playing a full part in Great Britain's Davis Cup defence starting on 4 March, despite becoming a dad and the prospect of a packed playing schedule hampering his chances of leading the side to a repeat triumph.

Murray was instrumental in ending Britain's 79-year wait for the title that came with victory over Belgium in Ghent in November 2015 and he will be back on court for a first round tie against Japan in Birmingham.

Should his side advance past the Kei Nishikori-led Japan, Murray has pledged to play in a potential quarter-final against either Serbia or Kazakhstan that falls between Wimbledon and the Olympics in Rio de Janeiro. The Davis Cup tie will be Murray's first tournament since the birth of his and wife Kim's first child, daughter Sophia, on 7 February. Asked in Birmingham how that had been, Murray said great, but scary.

"Obviously the first day was great. I guess the scariest part for me, rather than exciting, was when I was sort of left alone with her for the first time, that was when I sort of realised like 'OK it's a big, big responsibility here'," said the Scot, adding: "But it's been great so far. I mean she's been really good and yeah, I enjoyed the first few weeks. It's been tough being away from her last, last few days. Yeah, it had to happen at some point I guess."

Murray was also asked what sort of impact becoming a father might have on his performances. "I don't know to be honest, I haven't really thought about that. I mean obviously your, like I said your priorities do change. You know my family is the most important thing to me now. I'm trying to be a good dad first and foremost. If it has a positive impact, fantastic, if it has a negative impact, that's fine as well," said the world number two.

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