Andy Murray has offered to try to get tickets for Great Britain fans in Madrid who want to watch the team's Davis Cup semi-final on Saturday.

Britain will play Spain or Argentina in the Spanish capital at 16:30 GMT.

Dan Evans and Kyle Edmund booked Britain's place in the last four with victory over Germany on Friday.

"We will try to sort out as many tickets as possible for anyone who wants to come [and] support," Scot Murray, 32, posted on Instagram.

It was not clear whether Murray's offer was to increase Great Britain's paid-for allocation or to try to secure free tickets for fans.

Murray did not feature in the quarter-final after captain Leon Smith decided not to recall the former world number one, who also missed the match against Kazakhstan after a laboured performance in the opening win over the Netherlands.

The Lawn Tennis Association (LTA), British tennis' governing body, said it was talking to tournament organisers about how many tickets would be available for British fans in the 12,500-capacity Manolo Santana Court at the Caja Magica.

Britain were backed by around 1,000 fans in their opening two group matches against the Netherlands and Kazakhstan, with that number thought to be slightly lower for the quarter-final against the Germans.

Shortly after Britain completed their win, and before the outcome of Spain's tie against Argentina, the ticket portal on the Davis Cup finals website was showing about 300 were still available for the general public to buy.

"I don't know how many Brits are in Madrid. There could be quite a few," British captain Leon Smith said.

"If we do have an allocation that isn't sold out, then obviously we'd like as many people to come and watch.

"One, for the atmosphere; and two, to keep supporting the event."