The French Open semi-final between Novak Djokovic and Andy Murray was suspended until Saturday after a severe storm and fading light led to play being abandoned at Roland Garros on Friday.
World number one Djokovic was leading 6-3, 6-3, 5-7, 3-3 when play was halted at 18:33 GMT with the match officially called off 10 minutes later.
The winner will face Stan Wawrinka in Sunday's final.
When play was halted, Djokovic and Murray, meeting for the 27th time, had been playing for 3 hours and eight minutes in a rollercoaster of a match.
Top-seeded Djokovic, who knocked out nine-time champion Rafael Nadal in the quarter-finals, needs a French Open title to make him only the eighth man to win all four Majors.
It would also put him halfway to a rare Calendar Grand Slam, a feat achieved by just two men, most recently by Australian great Rod Laver back in 1969. Murray is hoping to become Britain's first men's finalist since Bunny Austin in 1937.
Djokovic swept through the first two sets as he sought an eighth successive win over Murray and his 28th in a row this season.
But Murray clawed his way back, taking the third set and forcing the Serb off court for a medical timeout.
In fading light, Murray broke for 2-1 before Djokovic broke back immediately for 2-2.
Moments later, the match was called off and will resume at 1100 GMT on Saturday before the women's final between Serena Williams and Lucie Safarova.
Earlier, Wawrinka shattered French hopes of a first men's singles champion in 32 years when he outlasted Jo-Wilfried Tsonga 6-3, 6-7 (1/7), 7-6 (7/3) 6-4.