In a study involving Brazilian volleyball players (146 and 125 players, with and without tendinopathy, respectively; n = 271), the Forkhead Box P3 (FOXP3) rs3761549 and the Fc Receptor Like 3 (FCRL3) rs7528684 were studied for tendinopathy risk [32], which was more prevalent in males (OR = 2.87; 95% CI = 1.67–4.93) and related to increased age (OR = 8.75; 95% CI, 4.33–17.69) and volleyball experience (OR = 8.38; 95% CI, 3.56–19.73). The gene discussed is FOXP3; the disease is disease of the tendon.