Dimitrov's matches are attracting a lot of attention these days after his performances at all three of the Masters events so far this season. In Indian Wells, he tested Novak Djokovic early on and he should have won the first set against Andy Murray in Miami. At Monte-Carlo, Dimitrov stunned Janko Tipsarevic en route to the quarter-finals where he pushed Rafael Nadal to three sets in a hugely impressive performance.
It means he's now inside the world's top 30 and will be seeded at the French Open later this month. However, in the Masters events he remains a dangerous floater and Djokovic will be keeping a keen eye on this one as he awaits the winner in round two. A Djokovic-Dimitrov clash on clay is an very enticing prospect.
21-year-old Marti received a wildcard for the main draw but he would have struggled to make it into qualifying directly with his current ranking of 202. Marti won a futures event in Italy last month but he's not in the same class as Dimitrov.
He was heavily beaten in the first round of a clay-court challenger in Turkey a few weeks ago and lost in qualifying for Barcelona to Dmitry Tursunov in three sets although that was an impressive display as Tursunov went on to beat David Ferrer in the main draw.
Prediction: Dimitrov in three.