Three-time Grand Slam winners Andy Murray and Stan Wawrinka have had contrasting fortunes in the first round of the clay-court Monte Carlo Masters

The 38-year-old Swiss held his nerve in an 18-point final game to edge Tallon Griekspoor, 5-7, 6-3, 6-4, on Monday afternoon.

The Spaniard booked an intriguing fourth-round clash with Jack Draper, after reaching a major career milestone at the BNP Paribas Open.

Wednesday's effort followed up a first-round performance where the former world No. 1 erased a trio of match points.

In addition to this battle between two of the world's brightest 21-and-under stars, we're keeping our eyes on three other matches.

The Dutchman’s three biggest wins have all come as a wild card at his home event, and all from a set down.

The solid Spaniard, or the Dutch touch? Or—something else entirely?

He’s the third Canadian man to reach the Top 10 in ATP rankings history, after Milos Raonic and Denis Shapovalov.

“Great performance,” said Djokovic. “Better definitely than the first-round match.”