One of the fundamental principles of the modern training lies in a suitable balance between the stimulation caused by the loads of training and the later recovery. For this purpose, there have been created multiple modalities that try to accelerate the process of recovery from physical exercise; one of those is the hydrotherapy, nevertheless its use is based generally on anecdotal information more than in controlled studies. PURPOSE: To assess the immediate effects of hydrotherapy in some physical qualities (strength, speed, jump capacity) and subjective perception of fatigue, in soccer players. METHODS: During a clinical Pseudo-experimental research, the strength (isokinetic force), speed (40 meters sprint), jump capacity (Bosco's test) and subjective sensation of fatigue were mesured in 7 soccer players for three non consecutive days: an initial evaluation (base); 16 hours later to a football match and after one session of 30 minutes of hydrotherapy (hydrotherapy); and 16 hours later to a football match without hydrotherapy (not hydrotherapy). The players were their own controls. The averages of the values obtained with the hydrotherapy and not hydrotherapy were compared with the base results. RESULTS: The players were slower in the final speed (time in seconds from 20 to 40 meters) in the situation of not hydrotherapy compared with the base (2.40 ± 0.10 vs. 2.35 ± 0.10 seconds, p <0.05); the maximum force of quadriceps diminished more in not hydrotherapy than in hydrotherapy with regard to the base (172.29 ± 36.39 vs. 190.14 ± 27.67 Newton · meter, p <0.05); the explosive force increased in the hamstrings of the right knee with the session of hydrotherapy (137,14 ± 26,94 vs. 120,57 ± 21,19 N·m of base, p <0.05); the players improved in the subjective perception of the physical condition after a session of hydrotherapy post game (30.4 ± 13.96 vs. 26.81 ± 16.55 %, p <0.05). CONCLUSIONS: A session of hydrotherapy immediately after a football match reduces the negative impact of a physical load over some qualities as the speed and the strength. The subjective perception of the physical condition improves after a session of hydrotherapy. The answers to a session of hydrotherapy were individual and did not generate adverse effects in the studied subjects.