Here is the Top 5 of the hot shots of February on the Challenger Tour. Four in simple and one in double.

Juan Martin del Potro delivers a 172 km/hour strike against Novak Djokovic in the quarter-finals on the clay of Rome.

What a forehand winner from Rafael Nadal in the first set of his final against Novak Djokovic in Rome. The Serbian can't even react on this enormous stroke.

Grigor Dimitrov comes up with a superb tweener hot shot in his second round against Marius Copil. This is the ATP Hot Shot of Wednesday on the clay of Madrid.

Superb defense from Kristina Mladenovic against Lauren Davis at Indian Wells.