The goal of the current study was to determine how bulgarian bag training improved football players' core and shoulder strength abilities. Twenty (20) male football players, aged between 20 to 25 years, were chosen at random from Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, India. The chosen participants were randomly assigned to one of two equal groups: The Control Group (CG; N=10) and the Bulgarian Bag Training Group (BBTG; N=10). A six-week bulgarian bag training regimen has been designed to test the impact of the offered training regimen on football players' core and shoulder strength. Before and after the six-week bulgarian bag training programme, the strength of the core and shoulders were assessed using the "plank test and push-up test." By examining and comparing the pre-test and post-test score using the paired sample 't' test and ANCOVA among the football players of BBTG and CG, it has been discovered that there have been significant positive increases in core strength and shoulder strength. According to the findings of this study, football players' core and shoulder strength improved after six weeks of bulgarian bag training regimen. The control group did not experience any appreciable improvements in their shoulder and core strength, perhaps as a result of the fact that they were not involved in any additional training programmes outside their regular activities.