Consider the following premises. For all x_11, x_11 is a sailor if and only if x_11 will play tennis. There is at least one x_11 for which if x_11 were a sailor, then x_11 is a musician. For all x_11, if x_11 were a musician, then x_11 is playing tennis. Can we infer the following from them? For all x_11, the fact that x_11 were a sailor does not imply that x_11 is playing tennis.
That contradicts the premises. Therefore the answer is no.