In addition to the domestic league, Sporting CP will participate in this season's editions of the Taça de Portugal and UEFA Cup.
The season covers the period from 1 July 1999 to 30 June 2000.
[1] Giuseppe Materazzi was signed as manager, but was sacked after only a few months, following a shock 3–0 defeat to Viking in the UEFA Cup.
He was replaced by Augusto Inácio, who was unable to reverse Sporting's fortunes on the continent but still guided them to the title and the domestic cup final.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.