World number four Roger Federer registered the 800th win of his career as he overcame Juan Monaco 6-3 7-5 in their Paris Masters quarter-final.
He is only the seventh man in history to surpass the 800-win mark.
Federer said: "It's nice. It's just another win, but it's a special one nevertheless, because 800 is definitely a big number."
He will now play Tomas Berdych, who defeated Andy Murray to end the Scot's 17-match unbeaten run.
Federer suffered an early break of serve but won five straight games to recover from 3-1 behind and take the opening set.
Federer, 30, who won the last of his Grand Slams in Australia in 2010, has suffered 186 losses over his career.
He is the highest-ranked player left in the tournament after Murray's defeat and world number one Novak Djokovic's withdrawal from the tournament with a shoulder injury.
Roger Federer was magnanimous in defeat on Friday after his hopes of a gold medal in the Olympic singles were extinguished by American James Blake. The Swiss, who will officially