Andy Murray will miss his grandfather's funeral on Friday to play in Great Britain's Davis Cup semi-final against Argentina.

Gordon Murray, the father of Andy and Jamie's father Willie, died at the age of 83 last week, shortly after the world number two returned from the US Open.

Andy attended the draw for the Davis Cup at Glasgow's Emirates Arena on Thursday but missed a post-draw press conference, reportedly so he could attend a family gathering in Kilsyth.

Older brother Jamie was present as he will be able to attend the funeral as he is only needed to play in a doubles tie on Saturday.

Andy will play Juan Martin Del Potro in Friday's match after defeating the Argentinian in the Olympic final a month ago.

There was no public comment from the brothers on their bereavement, but Great Britain captain Leon Smith said he was confident Andy could play three rubbers in three days regardless.

"He’s a very, very robust guy, both physically and mentally," said Smith. "So as much as it’s very, very difficult, don’t be surprised to see him do it.”

Andy will play Del Potro, ranked 64th in the world, at 1pm on Friday, before Kyle Edmund takes on Guido Pella.

The headline pair battled against each other for more than four hours in the Olympic gold medal match in Rio last month, with Andy eventually coming out on top.

The Murray brothers are then set to take on Federico Delbonis and Leonardo Mayer on Saturday, although team captains can change their nominations up to one hour before the start of play.

In a busy and testing weekend for the tennis ace, Andy will then take on Guido Pella on Sunday.

Britain are attempting to retain the Davis Cup for the first time since 1936, having won the tournament for the first time in 79 years in 2015.

While Andy missed part of Thursday's build-up, Jamie joined his mother Judy to pass on tips to schoolchildren picking up a tennis racket for the first time.

Judy's Tennis On The Road programme introduces children to tennis in parts of the country where courts and coaches are rarely found.

The initiative sees children play with balloons and bean bags - as Andy and Jamie did as youngsters - to develop their skills before they starting playing tennis.

Jamie joined his mother for some demonstrations and quickly remembered many of the games from his childhood.

Judy said: "I actually think he will be a really good coach if he decides to go into that when he stops playing.

"He has good people skills and is good at explaining things and has a nice way with him, so if he wanted to go down that route he'd actually be pretty good at it.

"Some of the things we did today he'll remember playing in the house.

"There were no indoor courts when they were young, so we were always playing things in the house with balloons, bean bags and ping-pong balls, but it shows that you can develop the skills for any sport by playing actively at home."

After the Davis Cup tie, both Andy and Jamie are due to take part in a live tennis exhibition in Glasgow next week in front of a sold-out crowd.

Judy said: "They don't get home very often, they are both based in London now, so when they are here it's important to try and make the most of that.

"It's a wonderful thing to watch them play in Scotland in front of a great crowd."