The official Palestinian Wafa news agency has an article about a friendly soccer match between the Palestinian team and Iran that took place in Doha.
The article headline refers to the team as the "fedayeen." Wikipedia confirms that this is the team's informal name, how it is referred to by Palestinian Arabs.
"Fedayeen" is the Arabic word for commandos, and that is the name that was used for the terrorists who infiltrated Israel in the 1950s as well as the Palestinian terrorists who hijacked airplanes and terrorized the West in the 1970s. For example, this article refers to the 1972 Munich Olympic terrorists as "fedayeen."
When Palestinians are looking for heroes to associate with their sports teams, they choose terrorists.