It is no secret to anyone that the elongation and muscle flexibility, is one of the physical abilities to which they are not given the real value it has, however, there are programs and plans practice where evidence ignored the presence of such capacity. However, football does not require extreme degrees of flexibility, if anything is needed labor mobility, which is nothing more than the levels required by the joints in your usual articulate movements or normal range. Moreover, in regard to the objective of flexibility, there are three key areas: injury prevention, optimization of physical work and recovery or regeneration thereof. It is for this reason that flexibility is one of the physical qualities that can and should be exercised throughout the season, taking into account issues to be discussed later, but obey the discretion of the coach or physical trainer in that phase or step locate the training session, depending on the objective to achieve. According Drobnic F, J and J Gonzalez de Suso Martinez Garcia (2004), along with the flexibility of muscles there are two features must be integrated as a whole. Flexibility: The possibility of achieving a better balance in the range of movement in different positions. Extensibility: The ability to let the muscle possesses stretch, which will be mediated by the intrinsic elasticity of the muscle itself. Elasticity: The ability to have the muscle to return to their normal position after being stretched. Types of Stretching Stretching muscle Liabilities: The athlete does not perform any activity or contribute to the exercise, ie, is assisted by an external agent (companion) which mobilizes the joint segment. Active Stretching: Also called ‘single lift’, as you run the player. It is performed when the muscle is stretched by voluntary contraction of the antagonists. Passive Stretching ‘Assets: We are facing a combined stretch when the onset of motion is performed by an external force, after which the player actively tries to maintain the position for several seconds. Stretching Post ‘isometric: It is one that seeks to build mutual relaxation phase that occurs in a muscle after a strong isometric contraction of both agonist and antagonist. Thanks to this method, it activates and strengthens the agonist and antagonist muscles, helping to determine the pattern of coordinated movement. Therefore, strengthen both body segments following a severe stretch. Proprioceptive neuromuscular facilitation (PNF). Covelo Matthew (2006), states in his work ‘Flexibility in football’, that the method was developed by Dr. Kabat in 1949 and adapted for the sport by various authors (Solverborn, 1987 Gohl, 1995 Balk, 1997 Geoffroy, 2001, Adler et al, 2003). The method is based on the realization of a stretch for 20 seconds followed by an isometric contraction of muscle stretching between 6-10 seconds followed by a relaxation phase. To recapitulate the stages of the method, results in the following sequence: stretching ‘contraction – relaxation. However, taking into account the above concepts, is hereby presents a methodological proposal based on the optimization and maintaining flexibility. First he must consider that the main objective of flexibility training in soccer, is closely related to the development and maintenance of a degree of joint mobility and reserve base, allowing the player much better implementation of technical gestures as helping to protect against possible injury. Likewise, be sought with these loads better assimilate the training sessions, recover faster and maintain proper balance and postural artromuscular, which in turn will serve as a preventative, ie prophylactic.