The German made nine unforced errors while slipping into shots to score 21 goals and record his ninth victory of the year.
Rublev, who advanced to the Principality final in 2021, outclassed Munar after two hours and twelve minutes by clubbing 36 winners and breaking Munar's serve six times.
Aiming to become the third player to win the Monte-Carlo title at least three times in a row, the second seed awaits Nicolas Jarry or Alexei Popyrin.
In contrast to Gakhov, who was playing in his third tour-level match, Djokovic was playing in his 1,254th, and that experience paid off in crucial situations.
After 72 minutes, the Argentine advanced and levelled his head to head series against Norrie at 1-1 by winning 90% (26/29) of his first-serve points and hitting 24 winners in the p...
The 38-year-old Wawrinka turned back the clock to win his 22nd match at the ATP Masters 1000 competition while playing on Court Rainier III.