Paris - The French Open semi-final between Novak Djokovic and Andy Murray was suspended on Friday as a thunderstorm approached Roland Garros.
World number one Djokovic of Serbia was leading 6-3, 6-3, 5-7, 3-3 against the British third seed.
The winner will take on Swiss Stan Wawrinka in Sunday's final.
Wawrinka beat Jo-Wilfried Tsonga 6-3, 6-7 (7/1), 7-6 (7/3), 6-4 and reached the French Open final for the first time.
Tsonga's hopes of becoming the first Frenchman to win the title since Yannick Noah in 1983 melted away on the hottest day of the championships - with the mercury hitting 33 degrees Celsius - as Wawrinka won the points that mattered.
The Swiss player said after the match: "It was a big battle and I'm happy I was able to pull through it.
"He deserved to make it to the final as much as I did."
Wawrinka's ability to raise his game when it really mattered was the key, with the 2014 Australian Open champion saving 16 of the 17 break points he faced.
"There were just two or three points that made the difference, and I found a way to fight," said Wawrinka, a former junior champion in Paris.