This is the 5194th most frequent Arabic word.
برغم
"برغم" means "despite" or "in spite of."
Here, "برغم" is used to highlight the contrast between the challenge (fatigue) and the accomplishment (work completion).
برغم التعب، أنجزتُ العمل في الوقت المحدد.
Despite the fatigue, I completed the work on time.
In this sentence, "برغم" introduces the adverse condition (bad weather) and the action taken contrary to it (going for a walk).
خرجنا للتنزه برغم الطقس السيئ.
We went out for a walk despite the bad weather.
The usage of "برغم" here indicates perseverance, as the player continued playing even under the condition of injury.