Murray wanted all his nous to grind out a 6-7 (7) 6-4 6-4 victory in three hours and 10 minutes at Manchester’s AO Area, giving Great Britain a 1-0 lead over Switzerland.
On the finish of what had been a light-hearted on-court interview, the Scot choked up, revealing the added significance of his victory.
“Today is a tough day for me, it’s my gran’s funeral today,” he mentioned. “I’m sorry to my family that I’m not able to be there but gran, this one’s for you.”
Murray then returned to his bench the place he sat sobbing into his towel.
It made his efforts in coming by way of one other lengthy and tense battle much more spectacular.
Murray had solely misplaced three of his earlier 35 singles matches within the competitors and by no means to a participant ranked as little as world quantity 152 Riedi, however the big-hitting 21-year-old produced a efficiency nicely above that.
Having seen his gamble to play debutant Jack Draper and Dan Evans handsomely repay in Wednesday’s victory over Australia, captain Leon Smith made use of his choices by naming Murray and Cameron Norrie as his singles gamers right here.
Evans’ 0-5 report in opposition to Wawrinka might have performed a component in his considering alongside maybe with warning to not overplay Draper contemplating his bodily fragility this yr.
Murray performed singles in opposition to Kazakhstan on the identical stage final yr however solely as soon as Britain have been already eradicated, making this his first dwell singles rubber within the competitors since 2019 and solely his second in seven years.
Switzerland additionally sprung a shock by choosing Riedi forward of their quantity two Dominic Stricker, and Murray admitted that had thrown him having ready to face a left-hander.
After negotiating an 11-minute first recreation, the Scot broke serve instantly and had an opportunity to open up a 4-0 lead.
He couldn’t take it, although, and Riedi labored his means into the competition, starting to trigger Murray rising issues along with his large forehand and aggressive techniques.
They earned him a break again when the Scot served for the set at 5-3, and Murray was then unable to take two set factors within the tie-break, Riedi changing his first alternative along with his twenty second winner.
The younger Swiss, who had by no means beforehand crushed a top-50 participant, had his tail up and Murray kicked his bag in frustration after failing to interrupt within the third recreation of the second set.
He lastly made the breakthrough at 3-3 when Riedi double-faulted, just for the 21-year-old to go away his opponent rooted to the spot with a sequence of blistering returns.
Undeterred, Murray engineered one other break and this time held onto it with trademark grim dedication to stage the match.
The 36-year-old has been in comparable conditions lots of of instances throughout his profession and finally expertise gained out, though it was nonetheless nip and tuck, with Murray slamming his racket to the courtroom after handing an early break again within the decider.
He broke once more to steer 3-2, although, and quashed Riedi’s hopes of a comeback by taking his first match level with an ace.
Murray mentioned: “It’s obviously incredible to get through that one, it easily could have gone the other way.
“It was ridiculous the shots he was pulling off, amazing, amazing returning. I kept fighting and tried to stay focused and managed to turn it round.”