Great Britain will be able to count on Andy Murray in their Davis Cup semi-final against Argentina, with the Wimbledon champion missing his grandfather's funeral in order to play.
Gordon Murray, the father of Andy and Jamie's father Willie, died last week.
Andy Murray was absent from the pre-tie press conference at Glasgow's Emirates Arena, reportedly so he could attend a family gathering, but brother Jamie was present.
Jamie will attend the funeral - he is needed only for Saturday's doubles - while Andy plays out a repeat of his Olympic final with Juan Martin del Potro.
The pair battled against each other for more than four hours in the Olympic gold medal match in Rio last month, with Murray eventually coming out on top.
Del Potro's status as only the third-ranked Argentina player, as he continues to work his way back from a long absence during which he underwent three wrist operations, lent an unusual level of intrigue to the draw.
Normally the big singles matches take place on Sunday but Guido Pella was given the nod to be Argentina's No.1 ahead of the higher-ranked Federico Delbonis and will play Kyle Edmund on Friday.
Argentina captain Daniel Orsanic, though, had no qualms in declaring Del Potro his side's most important player.
"Without a doubt," he said. "I think he's going through a very good moment. His comeback I think is good for the world of tennis so you can imagine what it means for us Argentinians."
Del Potro followed up his stunning Olympic run, where he defeated Novak Djokovic and Rafael Nadal, by reaching the quarter-finals of the US Open.
