No point in denying it; Marin Cilic is experiencing a period of technical, tactical and physical involution. Complicated also by some physical problems, the Croat has achieved few good results in these months, and his level on the court appears very far compared to that admired until June 2018.
But the bad news is not just in these. In fact, the clay swing coincides with the time of the year in which Cilic generally plays his worst tennis. The slow surface does not help his skills and his attack game, so in these months he will have to try to do his best, considering that he must also defend the 2018 French Open quarter-finals.
Since the beginning of the year the Croat has reached the fourth round at the Australian Open (defeat against Roberto Bautista), the first round in Dubai (defeat against Gael Monfils), the third round at Indian Wells (defeat against Denis Shapovalov) and second round at the Miami Open (defeat against Andrey Rublev).
Already in Monte Carlo, he had a very complicated draw; he was eliminated in the second round by Guido Pella, while in Madrid he reached the quarters, but he withdrew before the challenge against Novak Djokovic. If he wants to come back to compete at his best level, he will have to try to recover first of all the physical and the mental shape.
He does not currently seem to be able to compete against his best rivals and even against the young players of NextGen. However, I am quite sure that Cilic will be able to overcome this moment of crisis. His tennis has always experienced moments of ups and downs, and he has already emerged from other previous crisis of results, obtaining great achievements, like three Slam finals.
In the grass swing, Cilic will have the chance to return to compete with all the rivals, on a surface on which he expresses his best tennis. Always, obviously, he has to present himself in June with a decent psycho-physical condition.